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Journal articles on the topic 'Carbamyl derivatives'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Sinaga, Cinthia Uly Hotnami, and Asep Wahyu Nugraha. "Determining the Most Stable Structure of Benzamided Derivatives Using Density Functional Theory (DFT)." Indonesian Journal of Chemical Science and Technology (IJCST) 4, no. 2 (2021): 49. http://dx.doi.org/10.24114/ijcst.v4i2.27594.

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This study aims to determine the energy change ∆E and determine the most stable compound based on computation results using the Density Functional Theory (DFT) method. In determining the energy change ∆E and determining the most stable compound, computational chemical calculations were used using NWChem version 6.6 software with the DFT method with the B3LYP / 3-21G base set hybrid function, the results of the calculations were visualized using the Jmol software. The results of computational calculations on the compound Benzamide is 57467.3632844735 kJ / mol, (4 - chlorocarbonyl - benzial) - p

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2

Zincircioğlu, S. Burhanedtin, Naime Canoruç, Şemsettin Osmanoğlu, M. Halim Başkan, I. Yeşim Dicle та Murat Aydın. "Electron Paramagnetic Resonance of Some γ-Irradiated Amino Acid Derivatives". Zeitschrift für Naturforschung A 61, № 10-11 (2006): 577–82. http://dx.doi.org/10.1515/zna-2006-10-1110.

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γ -Irradiated powders of N-acetyl-L-arginine, Nα -carbamyl-L-arginine, N-glycyl-L-leucine and glycyl-L-alanine were investigated at room temperature by electron paramagnetic resonance. The observed species in N-acetyl-L-arginine and Nα -carbamyl-L-arginine were attributed to the CH2CHNHCNHNH2 radical, and those in N-glycyl-L-leucine and glycyl-L-alanine powders to (CH3)2CCH2 and CH3CHCOOH radicals.

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3

Bry, Lynn, Philip C. Chen, and David B. Sacks. "Effects of Hemoglobin Variants and Chemically Modified Derivatives on Assays for Glycohemoglobin." Clinical Chemistry 47, no. 2 (2001): 153–63. http://dx.doi.org/10.1093/clinchem/47.2.153.

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Abstract Background: Glycohemoglobin (gHb), measured as hemoglobin (Hb) A1c or as total gHb, provides a common means for assessing long-term glycemic control in individuals with diabetes mellitus. Genetic variants and chemically modified derivatives of Hb can profoundly affect the accuracy of these measurements, although effects vary considerably among commercially available methods. The prevalence of genetic variants such as HbS, HbC, and HbE, and chemically modified derivatives such as carbamyl-Hb among patient populations undergoing testing is not insignificant. Clinical laboratories and si

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4

Polovic, Natalija, Tanja Cirkovic-Velickovic, Marija Gavrovic-Jankulovic, et al. "IgG binding of mugwort pollen allergens and allergoids exposed to simulated gastrointestinal conditions measured by a self-developed ELISAtest." Journal of the Serbian Chemical Society 69, no. 7 (2004): 533–40. http://dx.doi.org/10.2298/jsc0407533p.

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This study considers the influence of exposure to simulated gastrointestinal conditions (saliva, gut, intestine and acidic conditions of the gut) on IgG binding of unmodified allergens and three types of LMW allergoids of Artemisia vulgaris pollen extract obtained by means of potassium cyanate succinic and maleic anhydride. It also concerns the optimization of a self-developed ELISA assay for comparison of the specific IgG binding of mugwort pollen extract and modified mugwort pollen derivatives. The ELISA was conducted with a mugwort pollen extract coupled to the plate, using the sera from 12

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5

Mateva, R., P. Petrov, S. Rousseva, R. Dimitrov, and G. Zolova. "On the structure of poly--caprolactams, obtained with bifunctional N-carbamyl derivatives of lactams." European Polymer Journal 36, no. 4 (2000): 813–21. http://dx.doi.org/10.1016/s0014-3057(99)00132-9.

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6

Callier, Anne-Claude, Beatrice Quiclet-Sire, and Samir Z. Zard. "Amidyl and carbamyl radicals by stannane mediated cleavage of O-benzoyl hydroxamic acid derivatives." Tetrahedron Letters 35, no. 33 (1994): 6109–12. http://dx.doi.org/10.1016/0040-4039(94)88089-1.

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7

Mateva, R., та P. Petrov. "On the activating anionic polymerization of ε-caprolactam in bulk caused by bis carbamyl derivatives". European Polymer Journal 35, № 2 (1999): 325–33. http://dx.doi.org/10.1016/s0014-3057(98)00113-x.

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8

Boivin, Jean, Anne-Claude Callier-Dublanchet, Béatrice Quiclet-Sire, Anne-Marie Schiano, and Samir Z. Zard. "Iminyl, amidyl, and carbamyl radicals from O-benzoyl oximes and O-benzoyl hydroxamic acid derivatives." Tetrahedron 51, no. 23 (1995): 6517–28. http://dx.doi.org/10.1016/0040-4020(95)00319-4.

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9

Shiba, Toshikazu, Kohji Takeda, Misako Yajima та Makoto Tadano. "Genes from Pseudomonas sp. Strain BS Involved in the Conversion of l-2-Amino-Δ2-Thiazolin-4-Carbonic Acid to l-Cysteine". Applied and Environmental Microbiology 68, № 5 (2002): 2179–87. http://dx.doi.org/10.1128/aem.68.5.2179-2187.2002.

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ABSTRACT dl-2-amino-Δ2-thiazolin-4-carbonic acid (dl-ATC) is a substrate for cysteine synthesis in some bacteria, and this bioconversion has been utilized for cysteine production in industry. We cloned a DNA fragment containing the genes involved in the conversion of l-ATC to l-cysteine from Pseudomonas sp. strain BS. The introduction of this DNA fragment into Escherichia coli cells enabled them to convert l-ATC to cysteine via N-carbamyl-l-cysteine (l-NCC) as an intermediate. The smallest recombinant plasmid, designated pTK10, contained a 2.6-kb insert DNA fragment that has l-cysteine synthet

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10

Zieve, Leslie, Carolyn Lyftogt, and Donna Raphael. "Ammonia toxicity: Comparative protective effect of various arginine and ornithine derivatives, aspartate, benzoate, and carbamyl glutamate." Metabolic Brain Disease 1, no. 1 (1986): 25–35. http://dx.doi.org/10.1007/bf00998474.

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11

CALLIER, A. C., B. QUICLET-SIRE, and S. Z. ZARD. "ChemInform Abstract: Amidyl and Carbamyl Radicals by Stannane-Mediated Cleavage of O- Benzoyl Hydroxamic Acid Derivatives." ChemInform 26, no. 1 (2010): no. http://dx.doi.org/10.1002/chin.199501071.

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12

BOIVIN, J., A. C. CALLIER-DUBLANCHET, B. QUICLET-SIRE, A. M. SCHIANO, and S. Z. ZARD. "ChemInform Abstract: Iminyl, Amidyl, and Carbamyl Radicals from O-Benzoyl Oximes and O- Benzoyl Hydroxamic Acid Derivatives." ChemInform 26, no. 41 (2010): no. http://dx.doi.org/10.1002/chin.199541068.

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13

Torup, Lars, Louise Bochsen, Marianne Kjalke, et al. "High-dose erythropoietin alters platelet reactivity and bleeding time in rodents in contrast to the neuroprotective variant carbamyl-erythropoietin (CEPO)." Thrombosis and Haemostasis 99, no. 04 (2008): 720–28. http://dx.doi.org/10.1160/th07-03-0208.

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SummaryThe haematopoietic hormone erythropoietin (EPO) has neuroprotective properties and is currently being explored for treatment of stroke and other neurological disorders. Short-term, high-dose treatment with EPO seems to improve neurological function of stroke patients but may be associated with increased thrombotic risk, whereas alternative non-erythropoietic neuroprotective derivatives of EPO, such as carbamylated EPO (CEPO), may be devoid of such side-effects. We investigated the effects of short-term, high-dose treatment with EPO and CEPO on platelet function and haemostasis in health

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14

Satta, Giuseppe, Silvia Gaspa, Luisa Pisano, Lidia De Luca, and Massimo Carraro. "5,10,15,20-Tetrakis-(4-(3-carbamoyl-pyridyl)-methylphenyl)porphyrin Bromide." Molbank 2024, no. 2 (2024): M1836. http://dx.doi.org/10.3390/m1836.

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The synthesis of a new tetracationic porphyrin derivative is described. Contrary to the best known derivatives in the literature, which are derived from 5,10,15,20-tetrakis-4-pyridylporphyrin (TPyP), in this procedure we start from 5,10,15,20-tetrakis-(4-carboxymethoxyphenyl)porphyrin (TPPCOOMe), obtained by the condensation reaction between pyrrole and 4-formylbenzoate. The reaction is carried out in refluxed xylene, avoiding the use of halogenated solvents. The final product, 5,10,15,20-tetrakis-(4-(3-carbamoyl-pyridyl)-methylphenyl)porphyrin bromide (P15p), exhibits four cationic portions t

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15

Rodríguez, Ricaurte, Felipe Quiroga-Suavita, and Mónica Yadira Dotor Robayo. "Unexpected Formation of 4-[(1-Carbamoyl-3-oxo-1,3-dihydro-2-benzofuran-1-yl)amino]benzoic Acid from 4-[(3-Amino-1-oxo-1H-2-benzopyran-4-yl)amino]benzoic Acid." Molbank 2022, no. 3 (2022): M1407. http://dx.doi.org/10.3390/m1407.

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With the aim of obtaining derivatives belonging to 2′,3′-diphenyl-3H-spiro[[2]benzofuran-1,4′-imidazole]-3,5′(3′H)-dione nucleus, we synthesized 4-[(3-amino-1-oxo-1H-2-benzopyran-4-yl)amino]benzoic acid (a 3,4-diaminoisocoumarine derivative), a known precursor of 4-[(1-carbamoyl-3-oxo-1,3-dihydro-2-benzofuran-1-yl)amino]benzoic acid (a phthalide–carboxamide-bearing system) by a novel methodology that we report here. The reaction conditions were optimized to afford the latter in 62% yield.

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16

Panagopoulos, Anastasios, Konstantina Alipranti, Kyriaki Mylona, et al. "Exploration of the DNA Photocleavage Activity of O-Halo-phenyl Carbamoyl Amidoximes: Studies of the UVA-Induced Effects on a Major Crop Pest, the Whitefly Bemisia tabaci." DNA 3, no. 2 (2023): 85–100. http://dx.doi.org/10.3390/dna3020006.

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The DNA photocleavage effect of halogenated O-carbamoyl derivatives of 4-MeO-benzamidoxime under UVB and UVA irradiation was studied in order to identify the nature, position, and number of halogens on the carbamoyl moiety that ensure photoactivity. F, Cl, and Br-phenyl carbamate esters (PCME) exhibited activity with the p-Cl-phenyl derivative to show excellent photocleavage against pBR322 plasmid DNA. m-Cl-PCME has diminished activity, whereas the presence of two halogen atoms reduced DNA photocleavage. The substitution on the benzamidoxime scaffold was irrelevant to the activity. The mechani

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17

Medzihradszky-Schweiger, Hedvig, Helga Süli-Vargha, József Bódi та Kálmán Medzihradszky. "The melanocyte stimulating activity of N-nitroso-2-chloroethyl-carbamoyl derivatives of α-melanotropin fragments". Collection of Czechoslovak Chemical Communications 53, № 11 (1988): 2574–82. http://dx.doi.org/10.1135/cccc19882574.

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A number of N-nitroso-2-chloroethyl-carbamoyl (Q(NO)) derivatives of α-melanotropin fragments have been synthesized and their effect on the frog skin melanocytes studied. Peptides substituted in this way possess the biological activity of the parent compounds, indicating that they preserved their receptor recognizing ability. These compounds can therefore serve as affinity labels. Some of these derivatives, related to the C-terminal sequence of α-melanotropin show prolonged darkening reaction, which does not influence the subsequent reaction of melanocytes with α-melanotropin. The Q(NO)-deriva

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18

Bordei Telehoiu, Alexandra T., Diana C. Nuță, Miron T. Căproiu, et al. "Design, Synthesis and In Vitro Characterization of Novel Antimicrobial Agents Based on 6-Chloro-9H-carbazol Derivatives and 1,3,4-Oxadiazole Scaffolds." Molecules 25, no. 2 (2020): 266. http://dx.doi.org/10.3390/molecules25020266.

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In this paper, we aimed to exploit and combine in the same molecule the carbazole and the 1,3,4-oxadiazole pharmacophores, to obtain novel carprofen derivatives, by using two synthesis pathways. For the first route, the following steps have been followed: (i) (RS)-2-(6-chloro-9H-carbazol-2-yl)propanonic acid (carprofen) treatment with methanol, yielding methyl (RS)-2-(6-chloro-9H-carbazol-2-yl)propanoate; (ii) the resulted methylic ester was converted to (RS)-2-(6-chloro-9H-carbazol-2-yl)propane hydrazide (carprofen hydrazide) by treatment with hydrazine hydrate; (iii) reaction of the hydrazid

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19

Kos, Ivan, Tin Weitner, Sandra Flinčec Grgac, and Jasna Jablan. "Thermal analysis of N-carbamoyl benzotriazole derivatives." Acta Pharmaceutica 65, no. 2 (2015): 207–13. http://dx.doi.org/10.1515/acph-2015-0017.

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Abstract Thermal properties of N-carbamoyl benzotriazole derivatives and N,N’,N’’-tribenzyloxyisocyanuric acid were investigated using thermogravimetric analysis and differential scanning calorimetry. The results revealed a difference between structural analogs of N-carbamoyl benzotriazole derivatives. They seem to be in agreement with the previously proposed formation of N,N’,N’’-tribenzyloxyisocyanuric acid from 1-(N-benzyloxycarbamoyl) benzotriazole, via an intermediary N-benzyloxyisocyanate acid, during heating. Substantially different thermal properties were observed for structural analog

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20

Ravindra, S. Dhivare, and S. Rajput Shankarsing. "SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF FIVE MEMBERED CYCLIC IMIDE DERIVATIVES OF MONO, DI AND TRI SUBSTITUTED AROMATIC AMINES AND NAPTHYL AMINE." World Journal of Pharmaceutical Research 4, no. 6 (2019): 1650–58. https://doi.org/10.20959/wjpr20156-3632.

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The five-membered cyclic imide derivatives were prepared by reacting succinic anhydride with substituted aromatic amines and naphthyl amine to get 3-(N-phenyl carbamoyl) propanoic acid and 3-(N-napthylcarbamoyl) propanoic acid. These intermediates underwent ring closer with acetyl chloride furnished five-membered cyclic imides derivatives. All these derivatives were screened for antimicrobial activities.

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21

R., S. Dhivare, and S. Rajput S. "Synthesis, Characterization and Antimicrobial Evolution of Six Membered Cyclic Imides." International Journal of Chemistry and Pharmaceutical Sciences 3, no. 8 (2015): 1877–80. https://doi.org/10.5281/zenodo.3909339.

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A B S T R A C T The six-membered cyclic imide derivatives were synthesized by reacting glutaric anhydride with different substituted aromatic amines to get 4-(N-phenyl carbamoyl) butanoic acid. These intermediates underwent ring closer with acetyl chloride furnished six-membered cyclic imides derivatives. All these derivatives were screened for antimicrobial activities.

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22

Xu, Ji Cheng, Xin Shan Rong, Ting Tian, and Feng Xian Qiu. "Fluorescent Sensor and Application in Determination of Carbaryl Residues." Advanced Materials Research 955-959 (June 2014): 1220–23. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.1220.

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The inclusion complex formation between fluorescent sensor 3, 3’-benzidine/β-cyclodextrin derivative (BDCD) and pesticide carbaryl was studied and characterized by TEM, XRD and fluorescence spectroscopy. The stability constant and the stoichiometry of complex were determined. Based on the enhancement of the fluorescence intensity of carbaryl produced through complex formation, a new sensitive method for the determination of carbaryl was established. The linear relationship between the fluorescence intensity and carbaryl concentration was obtained in the range of 0.60-3.00 μmol/L with a correla

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23

Berti, Francesco, Federico Malossi, Fabio Marchetti, and Mauro Pineschi. "A highly enantioselective Mannich reaction of aldehydes with cyclic N-acyliminium ions by synergistic catalysis." Chemical Communications 51, no. 71 (2015): 13694–97. http://dx.doi.org/10.1039/c5cc04416b.

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A novel enantioselective synthesis of carbamoyl isoquinoline and tetrahydropyridine derivatives is accomplished using matched combinations of Lewis or Brønsted acids and secondary amine organocatalysts.

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24

Novotný, Ladislav, Anna Vachálková, and Alois Pískala. "Investigation of the Polarographic Properties and Potential Carcinogenity of Some Hydroxyurea Derivatives by DC Polarography." Collection of Czechoslovak Chemical Communications 61, no. 4 (1996): 656–62. http://dx.doi.org/10.1135/cccc19960656.

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Polarographic reduction was studied for a series of 7 urea derivatives and the results were used to assess their potential carcinogenity. The polarographic reduction was examined in absolutely anhydrous dimethylformamide by DC polarography. In the conditions applied, the majority of the compounds was reduced within a single two-electron step, only biuret and its formyl derivative were reduced in two one-electron steps. The potential carcinogenity of the substances was assessed based on the tg α value of the slope of dependence of the polarographic wave height on the concentration of α-lipoic a

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25

Egorov, Ilya N., Vladimir L. Rusinov, and Oleg N. Chupakhin. "Synthesis of Chiral Pyrimidin-2(1H)-ones from N-Carbamoyl Amino Acids." Zeitschrift für Naturforschung B 68, no. 11 (2013): 1253–58. http://dx.doi.org/10.5560/znb.2013-3129.

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A series of previously unknown pyrimidin-2(1H)-ones containing chiral amino acid fragments was synthesized from 1,1,3,3-tetramethoxypropane and N-carbamoyl derivatives of amino acids under acidic conditions.

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26

Cheviet, Thomas, Ilyana Gonzales, and Suzanne Peyrottes. "Synthesis of N-methylene phosphonate aziridines: reaction scope and mechanistic insights." New Journal of Chemistry 46, no. 14 (2022): 6453–60. http://dx.doi.org/10.1039/d2nj00595f.

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Treatment of N-carbamoyl aziridines by the diethyl phosphite anion affords either α-methylene-phosphonate or gem-bisphosphonate derivatives containing an aziridine motif depending on the nature of the base used.

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27

Satheesh, A., J. C. S. Rao, P. Jayarangarao, K. Surendra, and H. Usha. "TMSCl as Greener and Effective Solvent for the Synthesis of Carbaryl Derivatives." Journal of Scientific Research 17, no. 1 (2025): 297–304. https://doi.org/10.3329/jsr.v17i1.73494.

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This work introduces a method that is both effective and ecologically sustainable for the production of carbaryl derivatives. Through the utilization of sodium cyanate, phenol/alcohol, and TMSCl (Me3SiCl), a notable level of purity and yield of the synthesized derivatives was attained significantly, this method showcased the efficacy of TMSCl as a gentle, convenient, and effective solvent in supporting this transformation.

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28

Cholakova, Tzvetanka P., Alexander A. Dobrev, Assen B. Kanchev, and Petja P. Mikhailova. "1,4-Addition of N,N-Disubstituted Phenylacetamides to 2-Arylmethylene-1,4-butanolides." Journal of Chemical Research 23, no. 9 (1999): 546–47. http://dx.doi.org/10.1177/174751989902300914.

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The 1,4-addition reaction of lithium derivatives of N,N-disubstituted phenylacetamides with 2-arylmethylene-1,4-butanolides gives the corresponding N,N-disubstituted 2-(1-aryl-2-carbamoyl-2-phenylethyl)-1,4-butanolides 3a–f as diastereoisomeric mixtures with 40–68% yields.

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29

Adeppa, K., D. C. Rupainwar, and Krishna Misra. "An improved one-pot cost-effective synthesis of N,N-disubstituted carbamoyl halides and derivatives." Canadian Journal of Chemistry 88, no. 12 (2010): 1277–80. http://dx.doi.org/10.1139/v10-138.

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A convenient one-pot procedure is reported for preparing N,N-disubstituted carbamoyl chlorides by using chlorocarbonylsulfenyl chloride as a carbonylating agent. It comprises the reaction of secondary amines with chlorocarbonylsulfenyl chloride in the presence of an aprotic organic solvent to produce the corresponding N,N-disubstituted carbamoyl halides. Insertion of the carbonyl group without using phosgene is the novelty of this method.

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30

Firdayani, Firdayani, Shelvi Listiana, and Billy Witanto. "Synthesis and Cytotoxic Evaluation of 3-Dimethyl Carbamoyl Emodin." Jurnal Kimia Valensi 9, no. 2 (2023): 306–12. http://dx.doi.org/10.15408/jkv.v9i2.34654.

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Emodin (6-methyl-1,3,8-trihydroxyanthraquinone) is a natural anthraquinone derivative with potential pharmacological such as cytotoxic effects. The structure modification could be performed to determine the functional groups that have the role of substance activities. In this study, we modified one hydroxy group in the emodin structure to become dimethyl carbamoyl moiety. Emodin was reacted with dimethyl carbamoyl chloride and potassium carbonate to create 3-dimethyl carbamoyl emodin. The structure of the product was elucidated using mass spectrophotometer (MS), Fourier transform infrared (FTI

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31

Sumi, Kenzo, Takao Ikariya, and Ryoji Noyori. "Efficient synthesis of optically active 2-amino-2'-diphenylphosphino-1,1'-binaphthyl and its derivatives." Canadian Journal of Chemistry 78, no. 6 (2000): 697–703. http://dx.doi.org/10.1139/v99-248.

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Optically active 2-amino-2'-diphenylphosphino-1,1'-binaphthyls having various functional groups, such as amino, alkoxycarbonylamino, acylamino, mono- and dialkylamino, and sulfonylamino at C2 position were prepared. The key intermediate of the above aminophosphines was 2-carbamoyl-2'-diphenylphosphinyl-1,1'-binaphthyl synthesized from optically active 2-cyano-2'-diphenylphosphinyl-1,1'-binaphthyl. The transformation of the carbamoyl group to an amino group was effected by the Hofmann reaction.Key words: aminophosphine ligand, Hofmann reaction, optically active phosphine ligand.

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32

Soleymani, Mousa, and Hamid Reza Memarian. "Synthesis of 3,4-Dihydropyrimidin-2(1H)-one-5-carboxamides." Zeitschrift für Naturforschung B 65, no. 4 (2010): 485–92. http://dx.doi.org/10.1515/znb-2010-0408.

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The synthesis of various dihydropyrimidinone derivatives bearing carbamoyl moieties in 5-position under reflux conditions and microwave irradiation is described. An efficient three-component Biginelli reaction using catalytic amounts of zirconium(IV) chloride as an efficient catalyst leads to the formation of these compounds.

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33

Hanna, Naeem B., Milena Masojídková, Pavel Fiedler, and Alois Pískala. "Synthesis of Some 6-Substituted 5-Azacytidines." Collection of Czechoslovak Chemical Communications 63, no. 2 (1998): 222–30. http://dx.doi.org/10.1135/cccc19980222.

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Protected 6-substituted benzyl, phenyl and chloromethyl derivatives of 5-azacytidine 8-10 have been prepared by addition of phenylacetyl- (2), benzoyl- (3) or (chloroacetyl)guanidine (4) to 2,3,5-tri-O-benzoyl-β-D-ribosyl isocyanate (1) and subsequent silylation-mediated cyclization of the obtained acyl(carbamoyl)guanidines 5-7. 4-Amino-6-phenyl-1,3,5-triazin-2(1H)-one (12) was obtained by condensation of carbamoylguanidine (13) with methyl benzoate in presence of methanolic sodium methoxide or by condensation of 13 with triethyl orthobenzoate in N,N-dimethylformamide. Stannic chloride catalyz

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34

Liu, Wei-Bing, Cui Chen, Qing Zhang, and Zhi-Bo Zhu. "Hypervalent iodine(III)-induced methylene acetoxylation of 3-oxo-N-substituted butanamides." Beilstein Journal of Organic Chemistry 7 (October 19, 2011): 1436–40. http://dx.doi.org/10.3762/bjoc.7.167.

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1-Carbamoyl-2-oxopropyl acetate derivatives were synthesized through an acetoxylation process to methylene with the aid of (diacetoxyiodo)benzene (DIB) as the oxidant. Not only mild reaction conditions, but also excellent yields and good substrate scope make the present protocol potentially useful in organic synthesis.

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35

Nováček, Libor, and Miloslav Nechvátal. "Partial reduction of quinoxaline 1,4-dioxide derivatives with L-ascorbic acid." Collection of Czechoslovak Chemical Communications 53, no. 6 (1988): 1302–6. http://dx.doi.org/10.1135/cccc19881302.

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Partial reduction of quinoxaline 1,4-dioxide derivatives with L-ascorbic acid has been elaborated. Quinoxaline 1,4-dioxide, 2,3-dimethylquinoxaline 1,4-dioxide, 2-methylquinoxaline 1,4-dioxide and 2-(N-(2-hydroxyethyl)carbamoyl)-3-methylquinoxaline 1,4-dioxide afforded monoxides. In the monomethyl derivatives the more distant N-O bond is reduced. In addition to the monoxide, quinoxaline 1,4-dioxide afforded small amount of quinoxaline. Structures of all the compounds have been confirmed by 1H and 13C NMR spectroscopy.

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36

Mandhadi, Jithendar R., Theivendren Panneerselvam, and Pavadai Parasuraman. "DESIGN, In silico Modeling, Toxicity study and Synthesis of Novel Substituted Semicarbazide Derivatives of Pyrimidine: An Antitubercular Agent." Current Bioactive Compounds 16, no. 3 (2020): 294–301. http://dx.doi.org/10.2174/1573407214666181001112601.

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Background: A series of 1-(2-(2-amino-5-carbamoyl-6-(1-(substitutedphenyl) prop-1-enyl) pyrimidin-4-yloxy)acetyl) semicarbazide (4a-i) derivatives was synthesized from substituted aromatic aldehydes, ethyl cyanoacetate and guanidine hydrochloride and characterized by analytical and spectral data, FTIR, 1H-NMR and Mass spectroscopy data. Methods: The antiTB action of the synthesized compounds was screened in comparison with the standard drug Rifampicin using MABA assay method. The SAR of substituted aromatic aldehydes with modification at ortho, meta and para positions with electron withdrawing

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37

K. Bilakhiya, Anvarhusen, Frank W. Heinemann, and Andreas Grohmann. "Carbamoyl Derivatives of a Pyridine-Based Tetraamine." Zeitschrift für Naturforschung B 62, no. 4 (2007): 519–22. http://dx.doi.org/10.1515/znb-2007-0405.

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The reaction of four equivalents of phenyl or tert-butyl isocyanate with the pyridine-derived tetraamine 2,6-C3H3N[CMe(CH2NH2)2]2 in toluene gives high yields of the quadruply ureido substituted products 2,6-C5H3N[CMe(CH2R)2]2 [R = -NH(CO)NHPh and -NH(CO)NHtBu]. Full spectroscopic data for both compounds are given. A single crystal X-ray structure determination of the phenyl derivative reveals an intricate network of both intra- and intermolecular hydrogen bonds involving the C=O and both NH functionalities in all ureido groups.

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38

Volonterio, Alessandro, Maria Bellucci, Massimo Frigerio, and Tommaso Marcelli. "Multicomponent Synthesis of N-Carbamoyl Hydantoin Derivatives." Synlett 24, no. 06 (2013): 727–32. http://dx.doi.org/10.1055/s-0032-1318432.

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39

Bogatskii, A. V., S. M. Pluzhnik-Gladyr', N. G. Luk'yanenko, S. A. Kotlyar, I. I. Chervin, and R. G. Kostyanovskii. "Synthesis of carbamoyl derivatives of azacrown ethers." Chemistry of Heterocyclic Compounds 21, no. 7 (1985): 832. http://dx.doi.org/10.1007/bf00519159.

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40

Li, Xinyao, Jun Pan, Song Song, and Ning Jiao. "Pd-catalyzed dehydrogenative annulation approach for the efficient synthesis of phenanthridinones." Chemical Science 7, no. 8 (2016): 5384–89. http://dx.doi.org/10.1039/c6sc01148a.

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41

Nitin Kumar, Neetika lal, Vishal Nemaysh, and Pratibha Mehta Luthra. "Synthesis and in vitro anticancer activity of novel 1,4-dimethyl-9-H-carbazol-3-yl) methanamine derivatives against human glioma U87 MG cell line." World Journal of Advanced Research and Reviews 19, no. 1 (2023): 1099–108. http://dx.doi.org/10.30574/wjarr.2023.19.1.1446.

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Glioblastoma Multiforme (GBM) is most aggressive type of brain tumor in adults. 1,4-dimethyl carbazoles exhibits significant anticancer activities in literature. In this research article, we synthesized a series of novel 1,4-dimethyl-9-H-carbazol-3-yl)methanamine and its derivatives (13-24) and evaluated their in vitro cytotoxicity activities against human glioma U87 MG cell line using MTT assay for 24 h phase time period. All final carbazole derivatives were well confirmed by NMR and HRMS spectroscopy techniques. In series, few compound (15-17) found excellent in vitro anticancer activity (IC

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42

Ochoa-Terán, Adrián, Jesús Estrada-Manjarrez, Marisela Martínez-Quiroz, et al. "A Novel and Highly Regioselective Synthesis of New Carbamoylcarboxylic Acids from Dianhydrides." Scientific World Journal 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/725981.

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A regioselective synthesis has been developed for the preparation of a series ofN,N′-disubstituted 4,4′-carbonylbis(carbamoylbenzoic) acids andN,N′-disubstituted bis(carbamoyl) terephthalic acids by treatment of 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (1) and 1,2,4,5-benzenetetracarboxylic dianhydride (2) with arylalkyl primary amines (A-N). The carbamoylcarboxylic acid derivatives were synthesized with good yield and high purity. The specific reaction conditions were established to obtain carbamoyl and carboxylic acid functionalities over the thermodynamically most favored imide gro

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43

Wu, Sitong, Guanglin Chen, Qiang Zhang, Guangdi Wang, and Qiao-Hong Chen. "3-O-Carbamoyl-5,7,20-O-trimethylsilybins: Synthesis and Preliminary Antiproliferative Evaluation." Molecules 26, no. 21 (2021): 6421. http://dx.doi.org/10.3390/molecules26216421.

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To search for novel androgen receptor (AR) modulators for the potential treatment of castration-resistant prostate cancer (CRPC), naturally occurring silibinin was sought after as a lead compound because it possesses a moderate potency towards AR-positive prostate cancer cells and its chemical scaffold is dissimilar to all currently marketed AR antagonists. On the basis of the structure–activity relationships that we have explored, this study aims to incorporate carbamoyl groups to the alcoholic hydroxyl groups of silibinin to improve its capability in selectively suppressing AR-positive prost

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44

Nitin, Kumar, lal Neetika, Nemaysh Vishal, and Mehta Luthra Pratibha. "Synthesis and in vitro anticancer activity of novel 1,4-dimethyl-9-H-carbazol-3-yl) methanamine derivatives against human glioma U87 MG cell line." World Journal of Advanced Research and Reviews 19, no. 1 (2023): 1099–108. https://doi.org/10.5281/zenodo.10295738.

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Glioblastoma Multiforme (GBM) is most aggressive type of brain tumor in adults. 1,4-dimethyl carbazoles exhibits significant anticancer activities in literature. In this research article, we synthesized a series of novel 1,4-dimethyl-9-<i>H</i>-carbazol-3-yl)methanamine  and its derivatives (13-24) and evaluated their <i>in vitro</i> cytotoxicity activities against human glioma U87 MG cell line using MTT assay for 24 h phase time period. All final carbazole derivatives were well confirmed by NMR and HRMS spectroscopy techniques. In series, few compound (<strong>15-17</strong>) found excel

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45

Murali, Karunanidhi, Hazel A. Sparkes, Baskaran Vijaya Pandiyan, and Karnam Jayarampillai Rajendra Prasad. "Synthesis, photophysical properties and DFT analysis of highly substituted pyrido carbazole-based “push pull” chromophores." New Journal of Chemistry 41, no. 16 (2017): 8242–52. http://dx.doi.org/10.1039/c7nj00643h.

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A series of new fluorescent pyrido[2,3-a]carbazole derivatives were synthesized based on a four component reaction with 2,3,4,9-tetrahydro-1H-carbazol-1-one, malononitrile, and aryl/heteroaryl aldehydes in presence of NaOEt.

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46

BARANY, GEORGE. "Chemistry of carbamoyl disulfide protected derivatives of proline*." International Journal of Peptide and Protein Research 19, no. 3 (2009): 321–24. http://dx.doi.org/10.1111/j.1399-3011.1982.tb03045.x.

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47

Kalam, Sirisha, Rajyalaxmi I, and Olivia S. "Synthesis and In vitro P-Glycoprotein Inhibitory Activity of Novel 1,4-Dihydropyridine Derivatives." International Journal of Pharmaceutical Sciences and Nanotechnology 7, no. 3 (2014): 2544–52. http://dx.doi.org/10.37285/ijpsn.2014.7.3.6.

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 Two series of new symmetrical 4-aryl-2,6-dimethyl-3,5-bis-N-(aryl/heteroaryl)-carbamoyl-1,4-dihydropyridines (4a-f) and asymmetrical 4-aryl-2,6-dimethyl-3-N-(aryl/hetero-aryl)-carbamoyl-5-ethyl carboxylate-1,4-dihydro-pyridines (5a-f) have been synthesized by simple, economical and eco-friendly, modified Hantzsch reaction using N-aryl/heteroarylacetoacetamides (3a-c), ethylaceto-acetate (for asymmetric), arylaldehydes and urea in presence of catalytic amounts of LiBr/Iodine and by microwave irradiation methods. The newly synthesized compounds were characterized by physical and spectral

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48

Safiulina, A. M., A. V. Lizunov, E. I. Goryunov, et al. "Derivatives of (2-carbamoyl ethyl)diphenylphosphine oxides: synthesis and extraction properties with respect to actinides and lanthanides." Журнал неорганической химии 69, no. 1 (2024): 99–109. http://dx.doi.org/10.31857/s0044457x24010124.

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A series of (2–carbamoyl ethyl)diphenylphosphine oxides (KFO) has been synthesized from commercially available reagents — diphenyl chlorophosphine and acrylamides. The influence of the number of ligand fragments of Ph2P(O)(CH2)2C(O), the nature of the oligoyl radical binding these fragments, as well as the presence of additional coordination centers in the KEFO molecule on the extraction properties of KEFO with respect to actinides and lanthanides was investigated. It was found that N,N′-methylene-bis[3-(diphenylphosphoryl) has the greatest efficiency in the extraction of actinidespropionamide

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49

Arnold, Zdeněk, Miloš Buděšínský, and Magdalena Pánková. "Reactivity of triformylmethane. I. Reactions of triformylmethane with selected types of amino compounds." Collection of Czechoslovak Chemical Communications 56, no. 5 (1991): 1019–31. http://dx.doi.org/10.1135/cccc19911019.

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Reactions of triformylmethane with various types of amino compounds were investigated. Besides with ammonia, triformylmethane reacts spontaneously with primary amines, aminoacids and their esters, urea and related compounds including carbamic acid derivatives. Reactions with amides of carboxylic and sulfonic acids require catalysis with Lewis acids. Primary products are aminomethylenemalonaldehyde derivatives IIIa-IIIv. Reactions of triformylmethane with excess of selected primary amines and two secondary amines (dimethylamine and morpholine) were also studied.

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50

Yu, Jun, Luo-bing Jiang, Wei-dong Feng, Chuan-meng Zhao, and Fu-li Zhang. "Preparation of Three Impurities in Cefoxitin." Journal of Chemical Research 42, no. 11 (2018): 541–46. http://dx.doi.org/10.3184/174751918x15402956899595.

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Three known impurities of cefoxitin have been prepared and characterised. One is a double-bond isomer of cefoxitin, Δ3-cefoxitin, which was easily prepared by base-catalysed isomerisation of cefoxitin. The second is a side-chain methoxylated derivative, methoxycefoxitin, which required a four-step synthesis from cephalothin. The last impurity is a lactone lacking the carbamyl grouping in cefoxitin, cefoxitin lactone, which was also prepared in four steps from cephalothin. The accessibility of these three impurities and methods for their analysis could be important for quality control in the ma

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