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Journal articles on the topic 'Dept 135'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

G.B.Iskenderova and S.B.Serkerov. "Detection of 7-Demethylsuberozine in Resin of Roots of Ferulago setifolia C.Koch." Journal of Life Sciences and Biomedicine 69, no. 2 (2014): 37–39. https://doi.org/10.5281/zenodo.7434650.

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A crystalline substance with composition of C14H14O3 and m.p.of 134-135ºC (from hexane-chloroform) has been isolated by column chromatography from the rezin of roots of Ferulago setifolia C.Koch (Apiaceae Lindl.) collected in the phase of fruiting. On the basis of chemical and spectral data (IR-, 1 H-, 13C-, 13C Dept 135 NMR) of an initial substance and its acetyl derivative it was proved that the substance has a structure of 7-hydroxy-6-izopentenilcoumarin (7-demethylsuberozine).

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2

Stoitsov, Dimitar, Marin Marinov, Plamen Penchev, and Neyko Stoyanov. "4-(8-Propyl-2,4-dithioxo-1,3-diazaspiro[4.5]decan-3-yl)spiro[1,5-dihydro-1,5-benzodiazepine-2,3′-indoline]-2′-one)." Molbank 2025, no. 2 (2025): M2011. https://doi.org/10.3390/m2011.

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A number of 1D and 2D NMR techniques, such as 1H, 13C, DEPT 135, 1H-1H COSY, HSQC, and HMBC, were utilized for the structure verification of 4-(8-propyl-2,4-dithioxo-1,3-diazaspiro[4.5]decan-3-yl)spiro[1,5-dihydro-1,5-benzodiazepine-2,3′-indoline]-2′-one). The NMR spectra provided evidence for the tautomeric conversion of the compound. The completely assigned NMR data was supported additionally by ATR.

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3

Lesbani, Aldes, Addy Rachmat, Risfidian Mohadi, and Eliza Eliza. "PENGGUNAAN KATALIS PALADIUM DALAM REAKSI ARILASI n-OKTILSILAN DENGAN 2-IODIDA-5-METIL TIOFEN." Molekul 9, no. 1 (2014): 18. http://dx.doi.org/10.20884/1.jm.2014.9.1.146.

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Telah dilakukan proses arilasi n-oktilsilan dengan 2-iodida-5-metil tiofen mengunakan katalis palladium dengan teknik reaksi kopling untuk mendapatkan variasi senyawa hasil arilasi. Produk hasil arilasi yang terbentuk dimurnikan dengan metode kromatografi kolom silika dengan eluen etil asetat dan dikarakterisasi menggunakan spektroskopi massa, spektroskopi 1H NMR, 13C NMR, dan DEPT-135. Hasil penelitian menunjukkan bahwa senyawa yang terbentuk dari hasil arilasi yakni tris(5-metil-2-tiofen)oktilsilan yang berupa cairan tak berwarna dengan nilaim/z sebesar 432. Hasil pengukuran menggunakan spek

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4

G.K., Gasimova, and Serkerov S.V. "Investigation Of The Coumarin Derivatives Of Aerial Parts Of Peucedanum ruthenicum." Journal of Life Sciences and Biomedicine 70, no. 1 (2015): 16–20. https://doi.org/10.5281/zenodo.8298747.

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Three coumarin derivatives: I) CısHiO4, mp. 108-109°C; II) CısHịO4, m.p. 109-110°C; III) CioHO3, m.p. 17-118°C have been isolated using chromatography of obtained compounds after extraction from the aerial parts of Peucedanum ruthenicum M.B., collected from Yasamal passage of Shamkir region of the Azerbaijan Republic. On the base of IR- and NMR- (H, *C, "C Dept 135, Dept 90) spectral data they have been identi- fied as isoimperatorin, peucedanin and ostrutin respectively.

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5

Rahman, S. M. Mizanur, Serajum Munira, and M. Amzad Hossain. "PHYTOCHEMICAL STUDY OF THE ARIAL PARTS OF Cleome rutidosperma DC PLANT." Indonesian Journal of Chemistry 8, no. 3 (2010): 459–62. http://dx.doi.org/10.22146/ijc.21606.

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Two new compounds were identified as 2-ethyl-cyclohex-2-ene-6-hydroxy-methylene-1-carboxylic acid and 3b-hydroxy-lup-20(29)-en-28-oic acid, respectively, from the petroleum ether extracts of Cleome rutidosperma plant. These two constituents is the first time occurrence in this plant. The structures of the two different type of compounds are elucidated with the help of UV, IR, 1H-NMR, 13C-NMR, COSY, DEPT 90, DEPT 135 and mass spectral data. Keywords: Cleome rutidosperm DC; isolation; spectral analysis

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6

S.V., Serkerov, and Kerimli E.H. "A New Steroid Compound From The Fraxinus excelsior Fruit." Journal of Life Sciences and Biomedicine 70, no. 3 (2015): 19–25. https://doi.org/10.5281/zenodo.7424287.

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From the alcoholic extract of Fraxinus excelsior L., collected in Absheron a crystalline compound with the elemental composition of C29H46O3 and m.p. of 232-234ºС was isolated. On the basis of chemical and spectral (IR, 13C NMR, Dept 90 and Dept135) data the structure of 24β-ethylcholesta-20-carboxy-6(7),8(9)- diene-3β-ol was proposed for the studied substance

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7

Jiang, Ai, Margrate Anyanwu, Kafai Leong, et al. "3-[(1H-Benzo[d][1,2,3]triazol-1-yl)oxy]propyl 9-hydroxy-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-3aH-cyclopenta[a]chrysene-3a-carboxylate." Molbank 2022, no. 3 (2022): M1419. http://dx.doi.org/10.3390/m1419.

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We herein report on the synthesis of a pentacyclic triterpene functionalized through derivation of betulinic acid with hydroxybenzotriazole. The compound was fully characterized by proton (1H-NMR), carbon-13 (13C-NMR), heteronuclear single quantum coherence (HSQC) and distortionless enhancement by polarization transfer (DEPT-135 and DEPT-90) nuclear magnetic resonance. Ultraviolet (UV), and Fourier-transform infrared (FTIR) spectroscopies as well as and high-resolution mass spectrometry (HRMS) were also adopted. Computational studies were conducted to foresee the interactions between compound

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8

Bhanja, Sunil Kumar, and Dilip Rout. "Structural Analysis of Two Bioactive Components of an Edible Mushroom, Termitomyces microcarpus." Natural Product Communications 12, no. 12 (2017): 1934578X1701201. http://dx.doi.org/10.1177/1934578x1701201226.

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Two glucans, one α-glucan (TM-I) and one β-glucan (TM-II) were isolated from an edible mushroom, Termitomyces microcarpus by extraction with 5% NaOH/0.05% NaBH4, followed by a precipitation with 1 M acetic acid. The repeating units of two polysaccharides have been identified by means of NMR studies (1H, 13C, DEPT-135 and HSQC) and chemical investigations. The structures of repeating units of two polymers were established as

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9

Kerimli, Elʹvin Gadzhi ogly, Adilya Novruz kyzy Aleskerova, and Siradzheddin Veli ogly Serkerov. "SESQUITERPENE LACTONS FROM AERIAL PARTS OF ARTEMISIA CAMPESTRIS (var. MARSCHALLIANA) SPRENG." chemistry of plant raw material, no. 2 (June 10, 2022): 129–35. http://dx.doi.org/10.14258/jcprm.20220210567.

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About 500 species of wormwood are known in the world. In the flora of Azerbaijan, this genus is represented by 42 taxa. The main chemicals in wormwood are shown to be sesquiterpene lactones, coumarins, steroids, and essential oils. From the aerial parts of Artemisia campestris (var. Marschalliana) Spreng., collected during the phenological phase of budding, an acetone extract was obtained, which, after removal of the solvent, was subjected to the column chromatography in neutral alumina oxide (II degree of activity) and eluted graduality with hexane, benzene, chloroform and their mixtures of i

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10

I.G., Heydarov, and Serkerov S.V. "Some Complex Esters Of Bicyclic Monoterpene Alcohols And Aromatic Acids Of The Roots Of Ferula calcarea." Journal of Life Sciences and Biomedicine. 2017, no. 2 (2023): 32–35. https://doi.org/10.5281/zenodo.7908986.

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From the sum of extractive compounds obtained by extracting of finely ground, air-dried roots of Ferula cal- carea M.Pimen. two crystalline substance compositions C17H22O3, m.p. 167.0-168.0°C (1) and C₁8H2404 m.p. 84.0-85.0°C have been isolated (2). Based on spectral (IR-, NMR H, 13C, 13C Dept 135) and chemical (alkaline hydrolysis) data it was proved that they had structures identical to the structures of l-chimgin and l- chimganin, respectively.

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11

Li, Chuanjiang, Hui Wang, Manuel Juárez та Eric Dongliang Ruan. "Structural Characterization of Amadori Rearrangement Product of Glucosylated Nα-Acetyl-Lysine by Nuclear Magnetic Resonance Spectroscopy". International Journal of Spectroscopy 2014 (17 квітня 2014): 1–6. http://dx.doi.org/10.1155/2014/789356.

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Maillard reaction is a nonenzymatic reaction between reducing sugars and free amino acid moieties, which is known as one of the most important modifications in food science. It is essential to characterize the structure of Amadori rearrangement products (ARPs) formed in the early stage of Maillard reaction. In the present study, the Nα-acetyl-lysine-glucose model had been successfully set up to produce ARP, Nα-acetyl-lysine-glucose. After HPLC purification, ARP had been identified by ESI-MS with intense [M+H]+ ion at 351 m/z and the purity of ARP was confirmed to be over 90% by the relative in

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12

Al–Douh, Mohammed Hadi, Shafida Abd Hamid, and Hasnah Osman. "1D AND 2D NMR STUDIES OF BENZYL O–VANILLIN." Indonesian Journal of Chemistry 8, no. 3 (2010): 411–17. http://dx.doi.org/10.22146/ijc.21598.

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The reaction of o-vanillin A with benzyl bromide B2 in acetone as the solvent and K2CO3 as a base in the presence of tetra-n-butylammonium iodide (TBAI) as catalyst formed benzyl o-vanillin, C. The complete assignments of C using PROTON, APT, DEPT-135, COSY, NOESY, HMQC and HMBC NMR in both CDCl3 and acetone-d6 are discussed, and the coupling constants J are reported in Hertz (Hz). Keywords: 1H NMR; 13C NMR; 2D NMR; Benzyl o-Vanillin

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13

Aparicio Acevedo, Deiby F., Marlyn C. Ortiz Villamizar, and Vladimir V. Kouznetsov. "Three-Step Synthesis of N-(7-chloro-4-morpholinoquinolin-2-yl)benzamide from 4,7-Dichloroquinoline." Molbank 2024, no. 1 (2024): M1796. http://dx.doi.org/10.3390/m1796.

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The quinoline derivative, N-(7-chloro-4-morpholinoquinolin-2-yl)benzamide, was synthesized in a conventional three-step procedure from 4,7-dichloroquinoline using a N-oxidation reaction/C2-amide formation reaction/C4 SNAr reaction sequence. The structure of the compound was fully characterized by FT-IR, 1H-, 13C-NMR, DEPT-135°, and ESI-MS techniques. Its physicochemical parameters (Lipinski’s descriptors) were also calculated using the online SwissADME database. Such derivatives are relevant therapeutic agents exhibiting potent anticancer, antibacterial, antifungal, and antiparasitic propertie

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14

Stoyanova, Savina, and Milen G. Bogdanov. "Synthesis and Characterization of cis-/trans-(±)-3-Alkyl-3,4-dihydro-6,7-dimethoxy-1-oxo-1H-isochromene-4-carboxylic Acids." Molbank 2025, no. 2 (2025): M1988. https://doi.org/10.3390/m1988.

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A series of new 3-alkyl substituted cis- and trans-(±)-3,4-dihydro-6,7-dimethoxy-1-oxo-1H-isochromene-4-carboxylic acids (cis-/trans-1–3) was synthesized through the reaction of 6,7-dimethoxyhomophthalic anhydride with aliphatic aldehydes of varying chain lengths. Their structure and configuration were elucidated using spectral methods, including 1H, 13C, DEPT-135 NMR, FTIR, UV-Vis, and HRMS analyses. A deductive conformational analysis was performed for determining the preferred conformations in solution and to explain the observed vicinal coupling constants.

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15

Fai, Leong Ka, Margrate Anyanwu, Jiang Ai, et al. "4-(4-(((1H-Benzo[d][1,2,3]triazol-1-yl)oxy)methyl)-1H-1,2,3-triazol-1-yl)-7-chloroquinoline." Molbank 2022, no. 3 (2022): M1404. http://dx.doi.org/10.3390/m1404.

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The 1,2,3-triazole ring system can be easily obtained by widely used copper-catalyzed click reaction of azides with alkynes. 1,2,3-triazole exhibits myriad of biological activities, including antibacterial antimalarial, and antiviral activities. We herein reported the synthesis of quinoline-based [1,2,3]-triazole hybrid derivative via Cu(I)-catalyzed click reaction of 4-azido-7-chloroquinoline with alkyne derivative of hydroxybenzotriazole (HOBt). The compound was fully characterized by proton nuclear magnetic resonance (1H-NMR), carbon-13 nuclear magnetic resonance (13C-NMR), correlated spect

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16

Hanoğlu, Azmi, Duygu Yiğit Hanoğlu, Nilay Demirel, Hasan Soliman Yusufoğlu, and İhsan Çalış. "Secondary Metabolites from Teucrium creticum L." Records of Natural Products 15, no. 6 (2021): 487–502. http://dx.doi.org/10.25135/rnp.232.20.12.1922.

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From the aerial parts of Teucrium creticum L. (Lamiaceae) eight compounds, 1 – 8 were isolated using chromatographical methods. Based on the results of spectroscopical analysis such as UV, 1D-NMR (1H-, 13C-NMR, DEPT-135), 2D-NMR (COSY, HSQC, HMBC, NOESY) and HRMS, the structure of the compounds were determined as two iridoids, 8-O-acetylharpagide (1) and teuhircoside (2), two phenylethanoid glycosides, verbascoside (= acteoside) (3) and lavandulifolioside (4), and four neoclerodane-type diterpenoids, teucrin H3 (= 19-acetylgnaphalin) (5), teucjaponin B (6), teucretol (7) and diacetylteumassili

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17

Lee, Azizan, Lo, Tan, and Tiekink. "2-{[Bis(propan-2-yl)carbamothioyl]sulfanyl}acetic acid." Molbank 2019, no. 4 (2019): M1082. http://dx.doi.org/10.3390/m1082.

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The title compound, (iPr)2NC(=S)SCH2C(=O)OH (1), was synthesized by conventional methods and its X-ray crystal structure was determined by X-ray crystallography. The compound was further characterized by analytical, IR, UV, 1D NMR (1H and 13C{1H}), and 2D NMR (DEPT-135) spectroscopy, and density functional theory (DFT) methods. X-ray crystallography on 1 confirms the formulation and reveals a nearly orthogonal relationship between the planar NCS2 and C2O2 residues. In the crystal, hydroxyl-O–H⋯O(carbonyl) hydrogen bonds lead dimers via an eight-membered {⋯OCOH}2 ring.

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18

Hossain, MM, ME Halim, MM Islam, et al. "Michael 1:1 adducts by acid catalyzed reaction during synthesis of spiro and spiroketal compounds." Bangladesh Journal of Scientific and Industrial Research 55, no. 4 (2020): 283–88. http://dx.doi.org/10.3329/bjsir.v55i4.50967.

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Four Michael 1:1 adducts 2-[1,5-bis-(2-methoxyphenyl)-3-oxo-pent-4-enyl]-cyclohexane-1,3- dione 3a, 2-[1,5-bis-(2-methylphenyl)-3-oxo-pent-4-enyl]-cyclohexane-1,3-dione 3b, 2-[1,5-bis- (2-chlorophenyl)-3-oxo-pent-4-enyl]-cyclohexane-1, 3-dione 3c and 2-[1,5-Bis-(2-chloro- phenyl)- 3-oxo-pent-4-enyl]-5,5-dimethyl-cyclohexane-1,3-dione 3d have been synthesised by the application of Michael reaction between 1, 3-cyclohexanedione 1a or dimedone (5, 5-dimethylcy clohexane-1, 3-dione) 1b and trans,trans diarylideneacetone [1,5-diaryl-1,4-pentadien-3-one] 2a-c using acid catalyst. These adducts may b

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19

Angelov, Victor, Savina Stoyanova, and Milen G. Bogdanov. "trans-11-(3,4-Dimethoxyphenyl)-2,3,8,9-tetramethoxy-6-oxo-11,12-dihydro-6H-dibenzo[c,h]chromene-12-carboxylic Acid." Molbank 2024, no. 4 (2024): M1920. http://dx.doi.org/10.3390/m1920.

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The title compound, trans-11-(3,4-Dimethoxyphenyl)-2,3,8,9-tetramethoxy-6-oxo-11,12-dihydro-6H-dibenzo[c,h]chromene-12-carboxylic acid (4), was synthesized for the first time via a two-step protocol from 3,4-dimethoxyhomophthalic anhydride (1) and 3,4-dimethoxybenzaldehyde (DMBA). In the first step, 1 reacts with DMBA to give trans-3-(3,4-dimethoxyphenyl)-6,7-dimethoxy-1-oxo-3,4-dihydro-1H-2-benzopyran-4-carboxylic acid (2), which further reacts with two additional equivalents of 1 to give 4. Compound 4 was characterized by means of spectral methods—1H-, 13C-, DEPT-135-NMR, and HRMS.

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20

DE AMORIM, M. L. L., W. M. GODINHO, F. C. ARCHANJO, and C. F. F. GRAEL. "Chemical constituents of Pseudobrickellia brasiliensis leaves(Spreng.) R.M. King & H. Rob. (Asteraceae)." Revista Brasileira de Plantas Medicinais 18, no. 2 (2016): 408–14. http://dx.doi.org/10.1590/1983-084x/15_185.

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ABSTRACT Pseudobrickelliabrasiliensisis aspecies endemic toBrazil, popularlyknown as “arnica”/ “arnica-do-campo”/ “arnica-do-mato” and used for itsanalgesicand anti-inflammatoryproperties. The objective of this research was thephytochemical studyof the essential oilandhexaneandethyl acetateextracts of the leaves of this species. The essential oilwasextracted byhydrodistillation using a Clevengerapparatusand was analyzed byGC/MS, 25components were identified, with a predominance ofmonoterpenes. The extractswere subjected toclassicalchromatographyand the fractionswere analyzed byGC/MS, 1D 1H-NMR

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21

محمود, حامد جاسم, та Maha Salih Hussein. "تحضير وتشخيص جالكونات وحلقات البايرازولين الجديدة المشتقة من حلقة 3،1-بنزوديوكسول". Samarra Journal of Pure and Applied Science 5, № 4 (2023): 24–43. http://dx.doi.org/10.54153/sjpas.2023.v5i4.560.

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تضمن هذا البحث تحضير حلقات بايرازولين جديدة من تفاعل جالكونات حلقة 3،1-بنزوداياوكسول مع الهيدرازين وبعض مشتقاته، حيث تم في الخطوة الأولى: تحضير الجالكونات الجديدة (H1-H3) من تفاعل 4,3-مثيلين داي اوكسي اسيتوفينون مع (4-فينوكسي بنزالديهايد، 4-داي ايثوكسي مثيل بنزالدهايد، فورفورال) بوجود القاعدة كعامل مساعد، وفي خطوة ثانية: اجري الغلق الحلقي من تفاعل الجالكونات الجديدة H1-H3 مع كل من (هيدرازين هايدريت، فنيل هيدرازين، 2-هيدرازينوبيريدين و 2-هيدرازينوبنزوثايازول)، بوجود الايثانول كمذيب بدون استخدام عامل مساعد للحصول علي عدد من حلقات البايرازولين الجديد, (H4-H15) ، تم تشخيص المركبات المحضرة من خلال

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22

Boudou, Farouk, Abdelghani Sehmi, Amal Belakredar, and Oussama Zaoui. "Synthesis, characterization, antimicrobial activity, and in silico assessment of a novel pyrazoline carboxamide heterocyclic compound." Bangladesh Journal of Pharmacology 18, no. 4 (2023): 152–61. https://doi.org/10.3329/bjp.v18i4.69267.

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This study presents the synthesis, characterization, and antimicrobial efficacy of a novel pyrazoline carboxamide heterocyclic compound. Synthesized through a two-step process, involving the formation of an α,β-unsaturated ketone and subsequent conversion into a pyrazoline carboxamide derivative, the compound's structure and functional groups were confirmed using FT-IR, 1H NMR, and DEPT-135 techniques. The compound demonstrated high purity and yield, displaying significant inhibitory zones against micro-organisms, notably Listeria monocytogenes (14.2 ± 0.0 mm to 16.8 ± 1.3 mm) and Candida albi

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Ren, Zimo, Yuzhu Guo, Yang Xiao, Alessandra Gianoncelli, Paolo Coghi, and Giovanni Ribaudo. "2-(Butylamino)-6-chloro-4-[3-(7-chloro-4-quinolylamino)propylamino]-1,3,5-triazine." Molbank 2024, no. 4 (2024): M1895. http://dx.doi.org/10.3390/m1895.

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We herein report the synthesis of a 7-chloro-aminoquinoline triazine conjugate. The s-triazine library was generated by stepwise nucleophilic substitution of cyanuric chloride with butylamine. The structure of the compound was comprehensively determined using various analytical techniques, including proton nuclear magnetic resonance (1H NMR), carbon-13 nuclear magnetic resonance (13C NMR), heteronuclear single quantum coherence (HSQC), and Distortionless Enhancement by Polarization Transfer (DEPT-135) experiments. Additionally, ultraviolet (UV) spectroscopy, Fourier-transform infrared (FTIR) s

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24

Quillian, Brandon, Kennedy Musso, Elizabeth M. Vinson, Joseph G. Bazemore, Allison R. Marks, and Clifford W. Padgett. "Diisoamyl (1R, 4S)-7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate." Molbank 2024, no. 3 (2024): M1852. http://dx.doi.org/10.3390/m1852.

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Diisoamyl (1R,4S)-7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate (2) was prepared by reacting exo-7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride (1) with isoamyl alcohol in the presence of a sulfuric acid catalyst under sonication conditions. Compound 2 was characterized by 1H, 13C NMR, DEPT-135, infrared, and UV-vis spectroscopy. Gas chromatography–mass spectrometry, elemental analysis, and melting point determination were used to assess purity. The structure of compound 2 was also determined by single-crystal X-ray diffraction. It crystallizes in the monoclinic space group P21/c (

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25

AL-RAQA, Shaya, İpek ÖMEROĞLU, Doğan ERBAHAR, and Mahmut DURMUŞ. "A novel selective fluorescent chemosensor for Fe3+ ions based on phthalonitrile dimer: synthesis, analysis, and theoretical studies." TURKISH JOURNAL OF CHEMISTRY 44, no. 5 (2020): 1254–64. http://dx.doi.org/10.3906/kim-2004-68.

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Phenyl-4,4-di(3,6-dibutoxyphthalonitrile) (3) was synthesized by the reaction of 1,4-phenylenebisboronic acid (1) and 4-bromo-3,6-dibutoxyphthalonitrile (2), using Suzuki cross-coupling reaction. The newly synthesized compound (3) was characterized by FT-IR, MALDI-MS, ESI-MS, 1H-NMR, 13C-NMR, and 13C-DEPT-135-NMR. The fluorescence property of phenyl-4,4-di(3,6- dibutoxyphthalonitrile) (3) towards various metal ions was investigated by fluorescence spectroscopy, and it was observed thatthe compound (3) displayed a significantly ‘turn-off’ response to Fe3+, which was referred to 1:2 complex form

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26

Marinova, Petya, Nikola Burdzhiev, Denica Blazheva, and Aleksandar Slavchev. "Synthesis and Antibacterial Studies of a New Au(III) Complex with 6-Methyl-2-Thioxo-2,3-Dihydropyrimidin-4(1H)-One." Molbank 2024, no. 2 (2024): M1827. http://dx.doi.org/10.3390/m1827.

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This article describes the synthesis of a new metal complex using 6-methyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one. The compound was analyzed using several methods, including determining its melting point and employing UV-Vis, IR, ATR, 1H NMR, HSQC, and Raman spectroscopy for the free ligand. The metal complex was formed by combining aqueous solutions of metal salts with the ligand dissolved in DMSO and water, along with NaOH in a metal-to-ligand-to-base ratio of 1:4:2. The NMR signals of the ligand were assigned using 1H-1H COSY, DEPT-135, HMBC, and HMQC spectra. Furthermore, the compound’s a

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27

Fatimah, Fatimah, Akhmad Toha, and Aryo Prakoso. "The Influence of Liquidity, Leverage and Profitability Ratio on Finansial Distress." Owner 3, no. 1 (2019): 103. http://dx.doi.org/10.33395/owner.v3i1.102.

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This study investigates the role of the financial ratio in predicting financial distress which has an important role in preventing bankruptcy. This study aims to know the influence of liquidity, leverage, and profitability ratios on financial distress (on real estate and property companies listed in Indonesia Stock Exchange in 2015-2017). 45 companies listed in Indonesia Stock Exchange from 2015 to 2017 were examined by using 135 units of analysis. Prediction model used was logistic regression technique with purposive sampling method. The findings indicated that there was no influence of liqui

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Hossain, M. Shakhawoat, M. Kamrul Hasan, M. Shoeb, MIR Mamun, N. Nahar, and M Mosihuzzaman. "Isolation and Characterization of Two Cucurbitane Type Triterpenoid Glycocide from 1-Butanol Soluble Part of Momordica charantia Fruit Pulp Juice." Dhaka University Journal of Science 66, no. 2 (2018): 145–49. http://dx.doi.org/10.3329/dujs.v66i2.54560.

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Momordica charantia is a member of the Cucurbitaceae family having diverse biological activities. Two cucurbitane type triterpene glycoside have been isolated from 1-butanol soluble part of clear juice of M. charantia fruit pulp through column chromatography and HPLC. The isolated compounds were characterized as compound MC1 (3β, 7-O-β-glucopyranosyl-25-methoxy cucurbita –5-en-19-al) and compound MC2 (5β, 19-epoxy- 3- O-glucopyranosyl-25 methoxy cucurbita-6, 23-dien) with the help of UV Spectroscopy, Thin Layer Chromatography, IR Spectroscopy, 1H, 13C and dept-135 NMR. The proposed structures

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Lasri, Jamal, Katherine Chulvi, and Naser Eltaher Eltayeb. "Crystal structures of (E)-1-naphthaldehyde oxime and (E)-phenanthrene-9-carbaldehyde oxime." Acta Crystallographica Section E Crystallographic Communications 74, no. 3 (2018): 332–36. http://dx.doi.org/10.1107/s2056989018002116.

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The aldoximes C11H9NO (I) and C15H11NO (II), synthesized inca90% yield, by treatment of 1-naphthaldehyde or phenanthrene-9-carbaldehyde, respectively, with hydroxylamine hydrochloride and sodium carbonate, have been characterized by IR,1H,13C and DEPT-135 NMR spectroscopies, and also by single-crystal X-ray diffraction analysis. The molecules of (I) and (II) are conformationally similar, with the aldoxime substituent groups lying outside the planes of the naphthalene or phenanthrene rings, forming dihedral angles with them of 23.9 (4) and 27.9 (6)°, respectively. The crystal structures of both

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Henderson, William, Obinna Okpareke, Ainnul Azizan та Edward Tiekink. "[Dicyclohexyl(sulfanylidene)-λ5-phosphanyl]methanol". Molbank 2019, № 3 (2019): M1069. http://dx.doi.org/10.3390/m1069.

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The title compound, [dicyclohexyl(sulfanylidene)-λ5-phosphanyl]methanol, Cy2P(=S)CH2OH (1), was obtained from the reaction between [Cy2P(CH2OH)2]Cl with one molar equivalent of NaOH and an excess of elemental sulfur (powdered). Characterization was by a single-crystal X-ray structure determination as well as IR, and 1D-NMR (1H, 13C{1H}, 31P{1H}), and 2D-NMR (DEPT-135 and HSQC) spectroscopy, ESI mass spectrometry, and elemental analysis. X-ray crystallography on Compound 1 shows the phosphorus atom to be tetrahedrally coordinated within a non-symmetric C3S donor set but with relatively minor di

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Rusnac, Roman, Andrei Ciursin, Sergiu Shova, Angela Sirbu, and Aurelian Gulea. "Synthesis and physical-chemical analysis of the coordination compounds of Cu(II) based on 3-ethoxysalicylaldehyde 4-cyclohexyl-thiosemicarbazone." Studia Universitatis Moldaviae. Seria Științe ale Naturii, no. 1(171) (September 2023): 194–205. http://dx.doi.org/10.59295/sum1(171)2023_26.

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In this article, methods of synthesis and physicochemical analysis of 5 coordination compounds based on Cu(II) ion and 3-ethoxysalicylic aldehyde 4-cyclohexyl-thiosemicarbazone are described. In the first step, the synthesis of the ligand was carried out by means of two classical methods with subsequent refinement, thus obtaining the H2L as a chelator of copper(II) ions. 1H, 13C and 15N-NMR spectroscopy, 13C-DEPT-135 NMR and 15N HSQC-NMR spectroscopy were applied to investigate the structure and geometry of the 3-ethoxysalicylic aldehyde 4-cyclohexyl-thiosemicarbazone. The synthesized substanc

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A.A. Alwahsh, Mohamed, Aboubaker A. Elhadi, and Melati Khairuddean. "ISOLATION AND FULL CHARACTERISATION OF TWO STEROL GLUCOSIDES FROM TEUCRIUM BARBEYANUM ASCHERS." EPH - International Journal of Applied Science 6, no. 2 (2020): 35–44. http://dx.doi.org/10.53555/eijas.v6i2.101.

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The genus Teucrium is used in folk medicine for a long time as hypoglycemic and hypolipidemic agents, and showed a wide spectrum of interesting biological activities. In this study, the aerial parts of Teucrium barbeyanum which collected from Ras El-Hilal, Libya were subject of extraction with different organic solvents, followed by extensive columns chromatography and crystallization using various solvent systems in order to isolate compounds. Dichloromethane extract afforded two sterol glucosides which successfully identified as sitosterol-3-O-β-D-glucoside and the rare compound, clerosterol

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Bhila, Varun G., Yogita L. Chovatiya, Chirag V. Patel, Rakesh R. Giri, and Dinkar I. Brahmbhatt. "A Convergent Approach for the Synthesis of New Pyrazolyl Bipyridinyl Substituted Coumarin Derivatives as Antimicrobials." International Letters of Chemistry, Physics and Astronomy 40 (October 2014): 1–16. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.40.1.

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Some new 3-[3-(1-phenyl-3-aryl-1H-pyrazol-4-yl) acryloyl] coumarins 3a-f were synthesized (coumarin chalcones) by the condensation of various 3-acetyl coumarins 1 and appropriate 1-phenyl-3-aryl-1H-pyrazole-4-carbaldehyde 2. These coumarin chalcones 3a-f were then employed for the synthesis of pyrazolyl bipyridinyl substituted coumarins 7a-f, 8a-f, and 9a-f under Krohnke’s reaction condition. The characterization of all the synthesized compounds was carried out by elemental analysis, IR, 1H-NMR, 13C-NMR, DEPT-135 and mass spectral analysis. In addition to that, in vitro antimicrobial competenc

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Bhila, Varun G., Yogita L. Chovatiya, Chirag V. Patel, Rakesh R. Giri, and Dinkar I. Brahmbhatt. "A Convergent Approach for the Synthesis of New Pyrazolyl Bipyridinyl Substituted Coumarin Derivatives as Antimicrobials." International Letters of Chemistry, Physics and Astronomy 40 (October 23, 2014): 1–16. http://dx.doi.org/10.56431/p-y6404d.

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Some new 3-[3-(1-phenyl-3-aryl-1H-pyrazol-4-yl) acryloyl] coumarins 3a-f were synthesized (coumarin chalcones) by the condensation of various 3-acetyl coumarins 1 and appropriate 1-phenyl-3-aryl-1H-pyrazole-4-carbaldehyde 2. These coumarin chalcones 3a-f were then employed for the synthesis of pyrazolyl bipyridinyl substituted coumarins 7a-f, 8a-f, and 9a-f under Krohnke’s reaction condition. The characterization of all the synthesized compounds was carried out by elemental analysis, IR, 1H-NMR, 13C-NMR, DEPT-135 and mass spectral analysis. In addition to that, in vitro antimicrobial competenc

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Alhilal, Mohammad, Yaser A. M. Sulaiman, Suzan Alhilal, Sobhi M. Gomha, and Salama A. Ouf. "Antifungal Activity of New Diterpenoid Alkaloids Isolated by Different Chromatographic Methods from Delphinium peregrinum L. var. eriocarpum Boiss." Molecules 26, no. 5 (2021): 1375. http://dx.doi.org/10.3390/molecules26051375.

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This paper aimed to investigate the potential antifungal influences of new alkaloids from Delphinium peregrinum L. var. eriocarpum Boiss. New Diterpenoid alkaloids Delcarpum (1), Hydrodavisine (4) and known alkaloids Peregrine (2), Delphitisine (3) were isolated by different chromatographic methods from the aerial parts of D. Peregrinum eriocarpum Boiss, which grows in Syria. The structures of alkaloids were proposed based on 1D NMR spectroscopy 1H-NMR, 13C-NMR, DEPT-135, DEPT-90, 2D NMR spectroscopy DQF-COSY, HMQC, EI-Ms mass spectrum, and IR spectroscopic measurements. The antifungal activit

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Haque, MM, N. Sultana, SMT Abedin та SE Kabir. "Stigmasterol, rengyolone, 2-phenylethyl β-D-glucopyranoside and n-tetradecyl-β-D-glucopyranoside from the flowers of Nyctanthes arbor-tristis Linn". Bangladesh Journal of Scientific and Industrial Research 54, № 3 (2019): 275–82. http://dx.doi.org/10.3329/bjsir.v54i3.42680.

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A phytochemical investigation was conducted on the flowers of Nyctanthesarbor-tristis Linn. For isolation of compounds, the dried flower’s powder was successively extracted with n-hexane, dichloromethane, ethyl acetate and methanol. The extracts were fractionated using different chromatographic techniques and four compounds were isolated. Stigmasterol (1) from n-hexane, rengyolone (2) from dichloromethane and two other compounds namely, 2-phenylethyl β-D-glucopyranoside (3) and n-tetradecyl-β-D-glucopyranoside (4) from ethyl acetate extract, were isolated. These compounds (1-4) were characteri

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Susilawati, Susilawati, Sabirin Matsjeh, Harno Dwi Pranowo, and Chairil Anwar. "MACRONONE, A NOVEL DIEPOXYLIGNAN FROM BARK OF MAHKOTA DEWA (Phaleria macrocarpa (Scheff.) Boerl.) AND ITS ANTIOXIDANT ACTIVITY." Indonesian Journal of Chemistry 12, no. 1 (2012): 62–69. http://dx.doi.org/10.22146/ijc.21373.

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Mahkota dewa (Phaleria macrocarpa (Scheff.) Boerl.) which is belong to family of Thymelaeaceae is one of Indonesian traditional medicines. Chemical constituent has been isolated from bark of mahkota dewa. Sample was extracted with methanol. Concentrated methanol extract was extracted by n-hexane, chloroform and ethyl acetate. A Compound that separated and purified by column chromatography from ethyl acetate extract is a red spherical crystal (m.p. 94-95 °C). Its spot gave yellow fluorescence at TLC plate (UV366) and has optical rotation of -9.3°(c. 2 mg/mL, methanol). Structure elucidation by

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., Nurlelasari, Asman ., Darwati ., et al. "Two Limonoid Compounds from the Seeds of Chisocheton lasiocarpus (Meliaceae)." Research Journal of Chemistry and Environment 27, no. 4 (2023): 33–38. http://dx.doi.org/10.25303/2704rjce033038.

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Limonoid compounds are found in the Meliaceae family, especially in the genus Chisocheton. This genus belongs to medicinal plants with limonoid content that contains various biological activities such as anticancer, antimalarial, anti-inflammatory, insecticide, antiviral, neuroprotective and antimicrobial properties. One of them which was not much reported is Chisocheton lasiocarpus. This study aims to get the new limonoid compound of C. lasiocarpus seeds. C. lasiocarpus seeds were macerated using methanol and were partitioned using n-hexane, ethyl acetate and butanol. The presence of limonoid

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Suryana, Angela, Andi Hairil Alimuddin, and Rudiyansyah Rudiyansyah. "Dukunolide D from the Root of Lansium domesticum Corr. cv Kokosan." Chimica et Natura Acta 13, no. 1 (2025): 9–14. https://doi.org/10.24198/cna.v13.n1.54511.

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Lansium domesticum has three varieties and one of the varieties is kokosan. These plants contain limonoids as the main constituents. Phytochemical investigation of L. domesticum cv kokosan has identified onoceranoids-type triterpenoids and tetranortriterpenoids from the seeds, fruit peels, and bark except for the root. This research described dukunolide D (1) that has been obtained from the methanol extract of the root of kokosan. Methanol root extract was fractioned by n-hexane and dichloromethane (DCM). All fractions including the crude extract were screened for phytochemical test. The DCM f

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Susilawati, Susilawati, Sabirin Matsjeh, Harno Dwi Pranowo, and Chairil Anwar. "ANTIOXIDANT ACTIVITY OF 2,6,4’-TRIHYDROXY-4-METHOXY BENZOPHENONE FROM ETHYL ACETATE EXTRACT OF LEAVES OF MAHKOTA DEWA (Phaleria macrocarpa (Scheff.) Boerl.)." Indonesian Journal of Chemistry 11, no. 2 (2011): 180–85. http://dx.doi.org/10.22146/ijc.21407.

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Mahkota dewa plant (Phaleria macrocarpa (Scheff.) Boerl.) which is included into family of Thymelaeaceae is one of Indonesia's traditional medicines. Chemical constituent has been isolated from ethyl acetate extract of leaves of mahkota dewa. Sample was extracted with methanol, concentrated then extracted by n-hexane, chloroform and ethyl acetate. The ethyl acetate extract was separated and fractionated by column chromatography. The first fraction was purified by TLC preparative and recrystalization. Compound was isolated as red-brown spherical crystal in 8 mg (m.p. 129-131 °C). Its spot gave

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Wong, Kok Tong, Hasnah Osman, Thaigarajan Parumasivam, Unang Supratman, Mohammad Tasyriq Che Omar, and Mohamad Nurul Azmi. "Synthesis, Characterization and Biological Evaluation of New 3,5-Disubstituted-Pyrazoline Derivatives as Potential Anti-Mycobacterium tuberculosis H37Ra Compounds." Molecules 26, no. 7 (2021): 2081. http://dx.doi.org/10.3390/molecules26072081.

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A total of fourteen pyrazoline derivatives were synthesized through cyclo-condensation reactions by chalcone derivatives with different types of semicarbazide. These compounds were characterized by IR, 1D-NMR (1H, 13C and Distortionless Enhancement by Polarization Transfer - DEPT-135) and 2D-NMR (COSY, HSQC and HMBC) as well as mass spectroscopy analysis (HRMS). The synthesized compounds were tested for their antituberculosis activity against Mycobacterium tuberculosis H37Ra in vitro. Based on this activity, compound 4a showed the most potent inhibitory activity, with a minimum inhibitory conc

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Ovonramwen, Oluwaseyi B., Bodunde J. Owolabi, and Abiodun Falodun. "Synthesis and antimicrobial activities of some new sulfonyl phenoxides." Tanzania Journal of Science 47, no. 2 (2021): 745–53. http://dx.doi.org/10.4314/tjs.v47i2.30.

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Four new sulfonyl phenoxides were synthesized through O-sulfonylation reaction of phenolic compounds with 5-chloro-1-ethyl-2-methylimidazole-4-sulfonyl chloride in good yield. FT-IR, 1H-NMR, 13C-NMR, and DEPT 135 NMR were carried out to characterize and the thin layer chromatography (TLC) confirm the purity. Antimicrobial activities of the sulfonyl phenoxides against Gram-positive (methicillin-susceptible Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, and Bacillus subtilis), Gram-negative (Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae), and Candida albica

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Ovonramwen, Oluwaseyi B. "Synthesis of 1-(2,4-Dinitrophenyl)-3,5-diphenyl-1H-pyrazol-4-ol via trans-1,3-Diphenyl-2,3-epoxy-1-propanone." Tanzania Journal of Science 47, no. 3 (2021): 1243–51. http://dx.doi.org/10.4314/tjs.v47i3.32.

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The trans-1,3-diphenyl-2,3-epoxy-1-propanone was synthesized from benzaldehyde and 2-bromoacetophenone in 20 min which is more economical. The presence of ethanol and Br in 2-bromoacetophenone facilitated the reaction. The vicinal diaxial coupling constant of trans-1,3-diphenyl-2,3-epoxy-1-propanone was zero, an indication of trans configuration for a rigid 3-membered ring at ~90o dihedral angle. 1-(2,4-Dinitrophenyl)-3,5-diphenyl-1H-pyrazol-4-ol was synthesized from trans-1,3-diphenyl-2,3-epoxy-1-propanone and 2,4-dinitro phenylhydrazine in glacial CH3COOH to give 85.5% yield and characterize

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44

Musa, Weny J. A., Kurnia Indah Setiyandani, Afif Hidayatul Mustafid, Nurhayati Bialangi, and Boima Situmeang. "Triterpene Compound from Ethyl Acetate Fraction of Kesambi Bark (Schleichera oleosa) and Its Activity as Anti-Bacterial." Indonesian Journal of Chemical Research 11, no. 3 (2024): 223–30. http://dx.doi.org/10.30598/ijcr.2024.11-wen.

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In our earlier study, we managed to find the antibacterial activity of the ethyl acetate fraction of the kesambi bark stem. In our next study, we isolated secondary metabolite compounds from the ethyl acetate fraction of the kesambi stem bark and tested the antibacterial activity of isolates against the bacteria Escherichia coli and Staphylococcus aureus. Separation is carried out by the method of column chromatography. Analysis of stain patterns and purity was performed with thin-layer chromatography (TLC). The test of antibacterial activity was carried out by the Kirby Bauer method. Characte

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Allam, Ahmed E., Alaa M. Nafady, Mohamed A. El-Shanawany, Fumide Takano, and Tomihisa Ohta. "New secoiridoid ester of swertiamarin and secoxyloganic acid with hepatoprotective activity from Centaurium spicatum L." Journal of Pharmacy & Pharmacognosy Research 3, no. 1 (2015): 69–76. http://dx.doi.org/10.56499/jppres15.058_3.3.69.

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Context: Centaurium spicatum (L.) Fritsch (Gentianaceae) is an annual herb occurring in Southern Europe and Northern Africa where it is used in traditional medicine for treatment of numerous illness. Aims: To isolate compounds from C. spicatum having hepatoprotective activity. Methods: Structure elucidation of the new compound was established on the basis of 1D and 2D NMR analyses including 1H-, 13C- NMR, DEPT-135 NMR, HMQC, HMBC and H- H HOHAHA experiments in addition to FAB+ and HRFAB+ Mass spectrometry. In vivo transaminases inhibition activity was carried out. Results: A new ester of swert

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Khandelwal, Deepika, Vikrant Kumar, Neeti Misra, et al. "NMR spectroscopy based configurational and compositional analysis of isobornyl methacrylate—Acrylonitrile copolymers." Applied Chemical Engineering 6, no. 1 (2023): 82. http://dx.doi.org/10.24294/ace.v6i1.1999.

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The authors conducted free radical polymerization using an initiator to synthesize a copolymer of isobornyl methacrylate—Acrylonitrile (I/A). The reactivity ratios of I (r1) and A (r2) monomers were determined as r1 = 1.63 ± 0.14, r2 = 0.61 ± 0.06 for linear KT (Kelen–Tudos) method and r1 = 1.58, r2 = 0.60 for the EVM (Error-in-Variable Method). We interpreted 1H and 13C{1H} NMR spectra of the I/A copolymers using DEPT-135 and 2D HSQC spectra. The α-CH3 carbon in the I-unit was identified and confirmed using a 2D HSQC NMR spectrum, up to the level of triad of compositional and configurational

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Attah, E. A., O. M. Mac-kalunta, J. Ibeji Iheanyichukwu, I. E. Otuokere та O. E. JohnBull. "Isolation, Characterization and Antimalarial Activity of β-Sitosterol from the Leaves of Alchornea cordifolia (Schumach. & Thonn.) Mull. Arg". Research Journal of Chemistry and Environment 29, № 3 (2025): 119–26. https://doi.org/10.25303/293rjce1190126.

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Alchornea cordifolia is well-known for its phytotherapeutic benefits which include potential antimalarial effects. In this study, bioactive components from A. cordifolia leaves were isolated and characterized. Additionally, the antimalarial effects of its crude methanol extract and ethyl acetate fraction were examined in vitro on human whole blood infected with Plasmodium falciparum. Standard techniques were employed for extraction, column chromatography and in vitro antimalarial activity. Salkowski and Liebermann-Burchard reactions were performed. The isolated fraction was characterized using

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Muharni, Muharni, Fitrya Fitrya, Widia Purwaningrum, and Ahmad Yogi Nugraha. "Secondary Metabolite from Endophytic Fungi Aspergillus Sp. The Leave Of Kunyit Putih (Curcuma zedoaria (Berg) Roscoe)." Molekul 11, no. 1 (2016): 125. http://dx.doi.org/10.20884/1.jm.2016.11.1.201.

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The compound from endophytic fungi of Aspergillus sp. from leaves of kunyit putih (Curcuma zedoaria (Berg.) Roscoe) has been isolated. Isolation begins with cultivation ofAspergillus sp. in 18 L PDB’s media (Potato Dextrose Broth) for 28 days. The liquid cultivation medium was extracted by partitioning method using ethylacetate and then evaporated. The extract was separated and purified by chromatography techniques. Elucidation stucture of the isolated compound was analysis by spectroscopic method NMR 1D and 2D. Antibacterial activity of isolated compound was tested using the disc diffusion me

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Paulo, Elinalva M., Elisangela F. Boffo, Alexsandro Branco, et al. "Production, extraction and characterization of exopolysaccharides produced by the native Leuconostoc pseudomesenteroides R2 strain." Anais da Academia Brasileira de Ciências 84, no. 2 (2012): 495–508. http://dx.doi.org/10.1590/s0001-37652012000200018.

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The genus Leuconostoc belongs to a group of lactic acid bacteria usually isolated from fermented vegetables, which includes species involved in the production of exopolysaccharides (EPS). These biopolymers possess considerable commercial potential. Because of the wide variety of industrial applications of EPS, this study aimed to produce and characterize the native exopolysaccharide strain Leuconostoc pseudomesenteroides R2, which was isolated from cabbage collected in a semi-arid region of Bahia. We employed the following conditions for the production of EPS: 10.7% sucrose, pH 8.2, without ag

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Aini, Kurratul, Elfita Elfita, Hary Widjajanti, Arum Setiawan, and Rian Oktiansyah. "Bioactivity of secondary metabolite of endophytic fungi extract isolated from root of Jambu Mawar (Syzygium jambos (L.) Alston)." International Journal of Secondary Metabolite 12, no. 1 (2025): 16–32. https://doi.org/10.21448/ijsm.1462128.

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This research aims to isolate endophytic fungi from Syzygium jambos and identify their active compounds. Endophytic fungi were isolated from the roots of S. jambos and cultured on Potato Dextrose Agar media. Antibacterial activity using the Kirby–Bauer method was tested on four Gram-positive and Gram-negative bacteria. Molecular identification was carried out on selected isolates to determine the species of endophytic fungi and isolate their active compounds. Column chromatography was used for compound isolation. The pure compounds were then analyzed spectroscopically using 1H-NMR, 13C-NMR, DE

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