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Journal articles on the topic 'Furano Compounds'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Wu, Wu-Lung, Wen-Liang Chang, and Chia-Fu Chen. "Cytotoxic Activities of Tanshinones Against Human Carcinoma Cell Lines." American Journal of Chinese Medicine 19, no. 03n04 (1991): 207–16. http://dx.doi.org/10.1142/s0192415x91000284.

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Fifteen tanshinone analogues isolated from the chloroform extract of Danshen roots (Salviae Miltiorrhizae Radix) by chromatographic procedures were tested for their cytotoxic activities against KB, Hela, Colo-205 and Hep-2 carcinoma cell lines. Several of them were effective at concentrations below 1 μg/ml concentrations. Tanshinone analogues with either hydroxy substitutions or olefinic feature in ring A demonstrated higher biologic activities. Analysis of structure-activity relationship indicate that the basic requirement for activity is the presence of a furano-o-naphthoquinone in the molec

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2

Fedorov, Alexey, Iuliia Gracheva, Elena Svirshchevskaya, and Elena Zaburdaeva. "Synthesis of Bifunctional Furano-Allocolchicinoids." Synthesis 49, no. 18 (2017): 4335–40. http://dx.doi.org/10.1055/s-0036-1589060.

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An efficient seven-step semisynthetic approach towards non-racemic bifunctional furano-allocolchicinoids, starting from naturally occurring colchicine is presented. The Pd-catalyzed domino Sonogashira coupling/5-endo-dig cyclization was employed as the key step. The prepared compounds exhibited substantial cytotoxicity against T3M4, MiaPaCa-2, Colo-357, and PANC-1 cell lines. The presence of two functionalities with different reactivity (hydroxyl and amino groups) in the target molecules allows for an easy conjugation of furano-allocolchicinoids with drug delivery carriers, and opens promising

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3

Marshall, James A., and Edward D. Robinson. "A mild method for the synthesis of furans. Application to 2,5-bridged furano macrocyclic compounds." Journal of Organic Chemistry 55, no. 11 (1990): 3450–51. http://dx.doi.org/10.1021/jo00298a012.

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4

Magalhães, Aderbal F., Ana Maria G. A. Tozzi, Eva G. Magalhães, Miriam Sannomiya, Maria del Pilar C. Soriano, and Mary A. F. Perez. "Flavonoids of Lonchocarpus montanus A.M.G. Azevedo and biological activity." Anais da Academia Brasileira de Ciências 79, no. 3 (2007): 351–67. http://dx.doi.org/10.1590/s0001-37652007000300001.

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The analysis of root extracts from Lonchocarpus montanus A.M.G. Azevedo resulted in the isolation of twenty three compounds chiefly flavonoids of which five (four flavonoids and one benzophenone) are described for the first time. The molecular structures of the new compounds (1-5) were determined through spectral analysis (UV, IR, MS and NMR) as being: 2'-hydroxy-8-(<FONT FACE=Symbol>a,a</FONT>-dimethylallyl)-2", 2"-dimethylpyrano-(5",6":3',4')-dibenzoylmethane (1), 2'-methoxy-8-(<FONT FACE=Symbol>a, a</FONT>-dimethylallyl)-2", 2"-dimethylpyrano-(5",6":3',4')-dibenzoylm

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5

S. Alqahtani, Ali, Fahd A. Nasr, Omar M. Noman, et al. "Cytotoxic Evaluation and Anti-Angiogenic Effects of Two Furano-Sesquiterpenoids from Commiphora myrrh Resin." Molecules 25, no. 6 (2020): 1318. http://dx.doi.org/10.3390/molecules25061318.

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Commiphora myrrh resin (Myrrh) has been used in traditional Arabic medicine to treat various inflammatory diseases. Two furano-sesquiterpenoids, 2-methoxyfuranodiene (CM1) and 2-acetoxyfuranodiene (CM2), were isolated from the chloroform fraction of the ethanolic extract of Arabic Commiphora myrrh resin. The cytotoxicity of the compounds was evaluated using human liver carcinoma, breast cancer cells (HepG2 and MCF-7, respectively) and normal human umbilical vein endothelial cells (HUVECs) cell lines. The development toxicity and anti-angiogenic activity of both compounds were also evaluated us

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6

McGuigan, Christopher, Sally Blewett, Dario Siccardi, et al. "Alkyloxyphenyl Furano Pyrimidines as Potent and Selective Anti-VZV Agents with Enhanced Water Solubility." Antiviral Chemistry and Chemotherapy 13, no. 2 (2002): 91–99. http://dx.doi.org/10.1177/095632020201300203.

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We have previously reported bicyclic furanopyrimidines as potent and selective inhibitors of varicella zoster virus (VZV) with subnanomolar activity for p-alkylphenyl substituted analogues. These compounds are highly lipophilic and of limited water solubility. In an effort to address this issue, and with a view to oral dosing, we have sought to enhance water solubility whilst retaining high antiviral potency and we herein report a novel series of p-alkyloxyphenyl compounds which contain a phenolic ether atom intended to boost hydrophilicity. We report the synthesis, characterisation and antivi

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Geetanjali, Y., B. Rajitha, and M. Kanakalingeswara Rao. "Linear Furano Compounds: Synthesis of 7H-Furo[3,2-g][1]benzopyran-7-ones." Bulletin of the Chemical Society of Japan 59, no. 4 (1986): 1299–301. http://dx.doi.org/10.1246/bcsj.59.1299.

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8

McGuigan, Christopher, Alison Jukes, Sally Blewett, et al. "Halophenyl Furanopyrimidines as Potent and Selective Anti-VZV Agents." Antiviral Chemistry and Chemotherapy 14, no. 3 (2003): 165–70. http://dx.doi.org/10.1177/095632020301400306.

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Bicyclic furano pyrimidines have been previously reported by us to be highly potent and selective inhibitors of varicella zoster virus (VZV). p-Alkyl phenyl analogues are particularly potent with EC50 values below 1nM. In this article we report the synthesis and anti-VZV activity of a series of halophenyl analogues, with variation in the nature (F, Cl, Br) and location (o, m, p) of the halogen substituent. The compounds show a range of activities from ca. 10 nM to >50 μM. In most cases, ortho substitution leads to greatest activity, meta substitution is in general poor, and the effect of p-

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9

Bayor, Marcel T., John S. K. Ayim, Gemma Marston, et al. "A Cytotoxic Diterpenoid from Croton Membranaceus, the Major Constituent of Anticancer Herbal Formulations Used in Ghana." Natural Product Communications 3, no. 11 (2008): 1934578X0800301. http://dx.doi.org/10.1177/1934578x0800301116.

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Croton membranaceus is used by herbalists and traditional healers in Ghana for the management of various cancers, especially prostate cancers. A methanolic extract of the roots showed cytotoxic activities against two cancer cell lines, and bioassay-guided fractionation of this extract revealed that the cytotoxic activity resided mostly in the ethyl acetate fraction. Six compounds were isolated from this fraction, including a new furano-clerodane diterpenoid (1), for which the trivial name crotomembranafuran is suggested. This compound exhibited an IC50 value of 4.1 μg/mL (10.6 μM) against huma

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10

Tahara, Satoshi, and John L. Ingham. "Fungal Metabolism of the Prenylated Isoflavone 2,3-Dehydrokievitone." Zeitschrift für Naturforschung C 42, no. 9-10 (1987): 1055–62. http://dx.doi.org/10.1515/znc-1987-9-1009.

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The prenylated isoflavone, 2,3-dehydrokievitone [5,7,2′,4′-tetrahydroxy-8-(3,3-dimethylallyl)- isoflavone, 1], was metabolized by both Aspergillus flavus and Botrytis cinerea to yield the same three compounds, a dihydrofurano-isoflavone (DK-M1, 2), a dihydropyrano-isoflavone (DK- M2, 3), and a glycol (DK-M3, 4). Although structure 3 has previously been assigned to lunatone, an isoflavone from CuCl2-stressed lima bean (Phaseolus lunatus) seedlings, a comparison of spectroscopic (MS, 1H NMR) data indicated that the Phaseolus compound was not identical with metabolite DK-M2 found in Aspergillus a

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11

Gosselin, G., C. Périgaud, M. C. Bergogne, J. Balzarini, E. De Clercq, and J. L. Imbach. "Synthesis and Biological Evaluation of New 5,6-dichlorobenzimidazole Nucleoside Derivatives." Antiviral Chemistry and Chemotherapy 5, no. 4 (1994): 243–56. http://dx.doi.org/10.1177/095632029400500406.

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Novel 5,6-dichlorobenzimidazole nucleoside analogues structurally related to the well-known riboside DRB have been synthesized. The 1′,2′- trans nucleosides were prepared by condensation of peracylated sugars with 5,6-dichlorobenzimidazole, whereas the 1′,2′- cis β-D-arabinofuranosyl and β-D-lyxofuranosyl nucleosides were obtained by inversion of configuration on the sugar moiety. Chiral acyclic derivatives were stereospecifically prepared by ring-opening of furano- or pyrano-nucleosides by means of periodate oxidation, followed by borohydride reduction. The in vitro activities against a range

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Sharapov, Ainur D., Ramil F. Fatykhov, Igor A. Khalymbadzha, Grigory V. Zyryanov, Oleg N. Chupakhin, and Mikhail V. Tsurkan. "Plant Coumarins with Anti-HIV Activity: Isolation and Mechanisms of Action." International Journal of Molecular Sciences 24, no. 3 (2023): 2839. http://dx.doi.org/10.3390/ijms24032839.

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This review summarizes and systematizes the literature on the anti-HIV activity of plant coumarins with emphasis on isolation and the mechanism of their antiviral action. This review summarizes the information on the anti-HIV properties of simple coumarins as well as annulated furano- and pyranocoumarins and shows that coumarins of plant origin can act by several mechanisms: inhibition of HIV reverse transcriptase and integrase, inhibition of cellular factors that regulate HIV-1 replication, and transmission of viral particles from infected macrophages to healthy ones. It is important to note

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13

Lim, Seon Mook, Hyo Jin Chung, Ki-Jung Paeng, Chang-Hee Lee, Han Nim Choi, and Won-Yong Lee. "Calix[2]furano[2]pyrrole and related compounds as the neutral carrier in silver ion-selective electrode." Analytica Chimica Acta 453, no. 1 (2002): 81–88. http://dx.doi.org/10.1016/s0003-2670(01)01493-3.

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14

Duc, Dau Xuan. "Recent Achievement in the Synthesis of Benzo[b]furans." Current Organic Synthesis 17, no. 7 (2020): 498–517. http://dx.doi.org/10.2174/1570179417666200625212639.

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Background: Benzo[b]furan derivatives are oxygen-containing heterocyclic compounds consisting of fused benzene and furan rings and are present in a large number of natural and non-natural compounds. This class of compounds has a wide spectrum of biological activities, such as antiarrhythmic, anticancer, inflammatory, antioxidant, antimicrobial, and antiviral. Furthermore, benzo[b]furan derivatives have also been applied in various areas, such as organic electroluminescence device materials and organic dyes, photosensitizing material, organic synthesis as building blocks or intermediates. : Bec

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15

Parveen, Abidah, Mir Tahir Maqbool, Yan-Hong Wang, Zulfiqar Ali, Ikhlas A. Khan, and M. Khalid Ashfaq. "Evaluation of the hepatotoxic potential of Tinospora crispa and its isolated borapetosides B, C and F in a murine model." Planta Medica 86, no. 07 (2020): 489–95. http://dx.doi.org/10.1055/a-1127-7503.

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AbstractThe hepatotoxic potential of the methanolic extract of the stems of Tinospora crispa and of its furano-diterpenoid–borapetosides B, C, and F–was investigated in normal and health-compromised mice. Health-compromised condition was established by a single intraperitoneal injection of LPS (6 mg/kg). Two different sets of experiments were conducted to evaluate the hepatotoxic potential. A 21-day study where the mice were dosed with the extract of T. crispa (1 gm/kg b. wt./day) or standardized combination of borapetosides B, C and F (500 mg/kg b. wt.) with or without a single dose of LPS (1

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16

Krause, T., C. Tubbesing, K. Benzing, and H. F. Schöler. "Model reactions and natural occurrence of furans from hypersaline environments." Biogeosciences Discussions 10, no. 11 (2013): 17439–68. http://dx.doi.org/10.5194/bgd-10-17439-2013.

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Abstract. Volatile organic compounds like furan and its derivatives are important for atmospheric properties and reactions. In this paper the known abiotic formation of furan from catechol under Fenton-like conditions with Fe3+ sulphate was revised by the use of a bispidine Fe2+ complex as a~model compound for iron with well-known characteristics. While total yields were comparable to those with the Fe3+ salt, the turnover numbers of the active iron species increased. Additionally, the role of iron and pH will be discussed during furan formation from model compounds and in natural sediment and

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Francuz, Jovana, Ivana Kovačević, Mirjana Popsavin, et al. "Design, synthesis and in vitro antitumour activity of new goniofufurone and 7-epi-goniofufurone mimics with halogen or azido groups at the C-7 position." EurJ Med Chem 128 (January 17, 2017): 13–24. https://doi.org/10.1016/j.ejmech.2017.01.024.

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A series of new antitumour lactones containing the [3.3.0] bicyclic furano-lactone core and the halogen or azido group at the C-7 position have been designed, synthesized, and evaluated for their in vitro antitumour activity against a panel of human tumour cell lines. Some of the analogues displayed powerful antiproliferative effects to certain human tumour cells, but all of them were devoid of any cytotoxicity towards the normal foetal lung fibroblasts (MRC-5). A SAR study reveals the structural features of these lactones that may affect their antiproliferative activity. These are: the nature

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18

Krause, T., C. Tubbesing, K. Benzing, and H. F. Schöler. "Model reactions and natural occurrence of furans from hypersaline environments." Biogeosciences 11, no. 10 (2014): 2871–82. http://dx.doi.org/10.5194/bg-11-2871-2014.

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Abstract. Volatile organic compounds like furan and its derivatives are important for atmospheric properties and reactions. In this work the known abiotic formation of furan from catechol under Fenton-like conditions with Fe3+ sulfate was revised by the use of a bispidine Fe2+ complex as a model compound for iron with well-known characteristics. While total yields were comparable to those with the Fe3+ salt, the bispidine Fe2+ complex is a better catalyst as the turnover numbers of the active iron species were higher. Additionally, the role of iron and pH is discussed in relation to furan form

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19

Kathirvel, Poonkodi, Kathirvel Poonkodi, Kalimuthu Gomathi, and Murugan Akila. "GC-MS ANALYSIS AND IN VITRO ANTIOXIDANT ACTIVITIES OF RUTA GRAVEOLENS L. FROM WESTERN GHATS REGION –SOUTH INDIA." Asian Journal of Pharmaceutical and Clinical Research 10, no. 5 (2017): 297. http://dx.doi.org/10.22159/ajpcr.2017.v10i5.17477.

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Aims:The present study examines the chemical composition of essential oil of Ruta graveleons and antioxidant activity of petroleum ether and methanol extracts of dry leaves of R. graveleons which belongs to Rutaceae family found in many parts of the India. There are few reports are available for its essential oil in India.Materials and methods:The fresh leaves were hydrodistilled by Clevenger type apparatus, the obtained essential oil was analyzed using GC-MS. The petroleum ether and methanol extracts were tested for antioxidant activity by DPPH˙ and ABTS methods.Results:The GC-MS results show

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20

Anjayani, Nuri, Senya Putri Amalia, Linda Sukmarini, Hady Anshory Tamhid, Gian Primahana, and Asih Triastuti. "Metabolomic and Cytotoxicity Profiles of Ethanol Extract of Peronema canescens Jack on Human Non-small Lung Cancer Cell A549." Jurnal Sains Farmasi & Klinis 12, no. 1 (2025): 7–14. https://doi.org/10.25077/jsfk.12.1.7-14.2025.

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Cancer has a high prevalence and mortality in the world. Cancer treatment is still hampered by high levels of side effects, drug resistance and the lack of affordable prices for anticancer drugs. It is necessary to develop new anticancer drugs to help overcome this problem. One of the plants that has the potential to be developed as an anticancer drug is Sungkai (Peronema canescens Jack). This study aims to determine the cytotoxic activity of sungkai leaf and identify its metabolomic profile. The sungkai leaves were macerated for 24 hours with 96% ethanol. Metabolomic profiles were analyzed wi

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Saito, Yoshinori, Koji Takiguchi, Xun Gong, Chiaki Kuroda, and Motoo Tori. "Thiophene, Furans, and Related Aromatic Compounds from Eupatorium heterophyllum." Natural Product Communications 6, no. 3 (2011): 1934578X1100600. http://dx.doi.org/10.1177/1934578x1100600312.

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A thiophene, two furans, a dihydro furan, and two acetylenic benzene derivatives were isolated from the roots of Eupatorium heterophyllum collected in China. Structures were established on the basis of spectroscopic analyses as well as chemical transformations.

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22

Andrei, Graciela, Rebecca Sienaert, Chris McGuigan, Erik De Clercq, Jan Balzarini, and Robert Snoeck. "Susceptibilities of Several Clinical Varicella-Zoster Virus (VZV) Isolates and Drug-Resistant VZV Strains to Bicyclic Furano Pyrimidine Nucleosides." Antimicrobial Agents and Chemotherapy 49, no. 3 (2005): 1081–86. http://dx.doi.org/10.1128/aac.49.3.1081-1086.2005.

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ABSTRACT Varicella-zoster virus (VZV) is responsible for primary infections as well as reactivations after latency in the dorsal root ganglia. The treatment of such infections is mandatory for immunocompromised patients and highly recommended for elderly patients with herpes zoster infections (also called zona or shingles). The treatment of choice is presently based on four molecules, acyclovir (ACV), valaciclovir, famciclovir, and (in Europe) brivudine (BVDU). We present here our data on the antiviral activity of a new class of potent and selective anti-VZV compounds, bicylic pyrimidine nucle

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23

Taddeo, Vito Alessandro, Salvatore Genovese, Francesco Epifano, and Serena Fiorito. "Synthesis of the Furan Nucleus Promoted by Ytterbium Triflate." Natural Product Communications 10, no. 11 (2015): 1934578X1501001. http://dx.doi.org/10.1177/1934578x1501001106.

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An efficient synthesis of differently substituted furans from acetylene dicarboxylates and β-dicarbonyl compounds is described. The furan nucleus was built by means of an Yb(OTf)3 catalyzed cycloaddition reaction yielding desired adducts in 91% – 98% yield.

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Hana, Saeid1* Hadeel Al-sayed2 Marwa Bader2. "A Review on Biological and Medicinal Significance of Furan." Alq J Med App Sci 6, no. 1 (2023): 44–58. https://doi.org/10.5281/zenodo.7650255.

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An important group of heterocyclic compounds with significant biological characteristics are furan derivatives. The creation of furan derivatives and their testing for various pharmacological properties have received a lot of attention over the past few decades. Various substances with anti-bacterial properties have a fundamental skeleton made up of furan rings. These molecules are frequently used in antiviral, antifungal, anti-inflammatory, analgesic, antidepressant, anti-anxiolytic, anti-parkinsonian, anti-glaucoma, muscle relaxant, antihypertensive, diuretic, anti-ulcer, anti-ageing, and an

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25

Kilibarda, Sofija, Marko D. Jović, Danijel D. Milinčić, et al. "Phytochemical Profile and Biological Activities of Rtanj’s Hypericum perforatum Infusion Tea and Methanolic Extracts: Insights from LC-MS/MS and HPTLC–Bioautography." Plants 14, no. 9 (2025): 1377. https://doi.org/10.3390/plants14091377.

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This study aimed to examine wild-growing Hypericum perforatum L. tea (Hyperici herba) collected from Rtanj Mountain (Serbia). This research includes the following approaches: phytochemical and antioxidant characterization of H. perforatum infusion tea to determine its realistic composition (What do we consume when drinking the tea?), as well as a detailed examination of methanol(ic) extracts as the optimal extraction system. Due to the broad spectrum of both polar and nonpolar metabolites, 80% methanolic and pure methanol extracts were prepared for ultra-high-performance liquid chromatography

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Jurášek, Adolf, Vladimír Žvak, Jaroslav Kováč, Oľga Rajniaková та Jarmila Štetinová. "Synthesis and reactions of β-substituted derivatives of furan". Collection of Czechoslovak Chemical Communications 50, № 9 (1985): 2077–83. http://dx.doi.org/10.1135/cccc19852077.

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The 1,4-cycloaddition reaction of 4-phenyl-1,3-oxazole to 2-propinyl benzoate and dimethyl butinedioate afforded the respective 3-furylmethyl benzoate (I) and 3,4-bis(methoxycarbonyl)furan (II). These compounds served for the synthesis of 3-chloromethylfuran and 3,4-bis(chloromethyl)furan, which afforded via Wittig reaction 3-(β-arylvinyl)furans III (aryl = 5-nitro-2-furyl (IIIa), 5-nitro-2-thienyl (IIIb), 1-methyl-4-nitro-2-pyrrolyl (IIIc), and 4-nitrophenyl (IIIe)) and 3,4-bis(β-arylvinyl)furans IV (aryl = 5-nitrofuryl (IVa), 5-nitro-2-thienyl (IVc), and 4-nitrophenyl (IVd)). According to sp

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27

Haji, Naemah, Masoma Faizi, Panayiotis A. Koutentis, Michael P. Carty, and Fawaz Aldabbagh. "Heterocyclic Iminoquinones and Quinones from the National Cancer Institute (NCI, USA) COMPARE Analysis." Molecules 28, no. 13 (2023): 5202. http://dx.doi.org/10.3390/molecules28135202.

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This review uses the National Cancer Institute (NCI) COMPARE program to establish an extensive list of heterocyclic iminoquinones and quinones with similarities in differential growth inhibition patterns across the 60-cell line panel of the NCI Developmental Therapeutics Program (DTP). Many natural products and synthetic analogues are revealed as potential NAD(P)H:quinone oxidoreductase 1 (NQO1) substrates, through correlations to dipyridoimidazo[5,4-f]benzimidazoleiminoquinone (DPIQ), and as potential thioredoxin reductase (TrxR) inhibitors, through correlations to benzo[1,2,4]triazin-7-ones

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Duc, Dau Xuan. "Recent Progress in the Synthesis of Furan." Mini-Reviews in Organic Chemistry 16, no. 5 (2019): 422–52. http://dx.doi.org/10.2174/1570193x15666180608084557.

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Furans are five-membered aromatic heterocycles containing one oxygen atom that are important building blocks in organic chemistry, but also as natural products found in various natural sources, mostly in plants, algae and microorganisms. In this review, we discussed recent advances in the synthesis of furan compounds. Some classical methods have been modified and improved, while other new methods have been developed. A vast variety of catalysts was used for these transformations. In many studies, furan synthesis reaction mechanisms were also investigated and proposed.

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Jassim, Uthman Ayad, Mohammed Ahmed Jassim, and Zahraa Reasan Kareem. "Estimation of Dioxins and Furans in Milk and the Effect of Thermal Treatments on Them." IOP Conference Series: Earth and Environmental Science 1487, no. 1 (2025): 012117. https://doi.org/10.1088/1755-1315/1487/1/012117.

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Abstract This study was designed at Tikrit University and conducted on samples taken from a polluted area. We studied the changes resulting from the effect of using thermal treatments on the concentration of dioxins and furans in milk. In this study, 17 homologues of these compounds were identified. These congeners include 7 dioxin congeners and 10 furan congeners. These compounds were determined in raw milk, then heat treated (boiling for 5 minutes) and re-examined after boiling. The results for fresh milk were compared with those for heat-treated milk. The study’s findings show that rising t

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Newland, Mike J., Yangang Ren, Max R. McGillen, Lisa Michelat, Véronique Daële, and Abdelwahid Mellouki. "NO<sub>3</sub> chemistry of wildfire emissions: a kinetic study of the gas-phase reactions of furans with the NO<sub>3</sub> radical." Atmospheric Chemistry and Physics 22, no. 3 (2022): 1761–72. http://dx.doi.org/10.5194/acp-22-1761-2022.

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Abstract. Furans are emitted to the atmosphere during biomass burning from the pyrolysis of cellulose. They are one of the major contributing volatile organic compound (VOC) classes to OH and NO3 reactivity in biomass burning plumes. The major removal process of furans from the atmosphere at night is reaction with the nitrate radical, NO3. Here, we report a series of relative rate experiments in the 7300 L indoor simulation chamber at Institut de Combustion Aérothermique Réactivité et Environnement, Centre national de la recherche scientifique (ICARE-CNRS), Orléans, using a number of different

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Nguyen, Hung Xuan, Xuyen Thi Nguyen, Hang Thi Hong Mai, et al. "A Comprehensive Evaluation of Dioxins and Furans Occurrence in River Sediments from a Secondary Steel Recycling Craft Village in Northern Vietnam." Molecules 29, no. 8 (2024): 1788. http://dx.doi.org/10.3390/molecules29081788.

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This first study investigated the presence of dioxins and furans in river sediments around a craft village in Vietnam, focusing on Secondary Steel Recycling. Sediment samples were collected from various locations along the riverbed near the Da Hoi Secondary Steel Recycling village in Bac Ninh province. The analysis was conducted using a HRGC/HRMS-DFS device, detecting a total of 17 dioxin/furan isomers in all samples, with an average total concentration of 288.86 ng/kg d.w. The concentrations of dioxin/furan congeners showed minimal variation among sediment samples, ranging from 253.9 to 344.2

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Van Nam, Huynh, Dinh Quoc Viet, Truong Thanh Tam, and Van Dinh Son Tho. "Chemical composition of pyrolysis oil through thermal decomposition of sugarcane biomass." Vietnam Journal of Chemistry 58, no. 6 (2020): 770–78. http://dx.doi.org/10.1002/vjch.202000077.

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AbstractThe process of thermal decomposition of sugarcane biomass consists of 4 stages. On that basis, the research conducted the pyrolysis of sugarcane biomass to collect liquid products at different temperature stages and they were analyzed by GC‐MS method to determine the chemical composition. Chemical composition of pyrolysis oil through thermal decomposition of sugarcane biomass was elucidated in this paper. It can be divided into 6 main groups, including: acids/esters, alcohols, aldehydes/ketones, furanic compounds (furans), phenolic compounds (phenols) and fragments of lignin containing

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Nehrbass-Stuedli, Angela, David Boykin, Richard R. Tidwell, and Reto Brun. "Novel Diamidines with Activity against Babesia divergensIn Vitroand Babesia microtiIn Vivo." Antimicrobial Agents and Chemotherapy 55, no. 7 (2011): 3439–45. http://dx.doi.org/10.1128/aac.01482-10.

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ABSTRACTDicationic diamidines, such as diminazene and pentamidine, are well-studied chemotherapeutic agents with significant activity against parasitic diseases. Thein vitroactivities of novel diamidine compounds against theBabesia divergensstrains 1903B and 4201 were investigated. The most potent compound, a diphenyl furan, had a 50% inhibitory concentration (IC50) of 1.5 ng/ml. In a murine model, several test compounds were effective enough to cure mice infected withBabesia microtiat a dose of 12.5 and/or 25 mg/kg of body weight given by the subcutaneous route for 4 days. The best antibabesi

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Yang, Diqian, Xiaohui Li, Haowei Wu, et al. "Enhancing Flavor in Dried Mackerel Floss (Scomberomorus niphonius) via Protease: Formation Mechanism of Characteristic Flavor Revealed by Integrated Multi-Omics Analysis." Foods 14, no. 11 (2025): 1864. https://doi.org/10.3390/foods14111864.

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Current marine mackerel (Scomberomorus niphonius) products predominantly involve low-value-added processing, while high-value-added products like fish floss remain underdeveloped. This study utilized mackerel dorsal muscle treated with flavor protease (FP), papain (PP), and neutral protease (NP) (10 U/g, 30 min), followed by steaming and stir-frying. Combined with sensory evaluation, HS-GC-IMS, and automatic amino acid analysis, the characteristic flavor was evaluated by multi-omics. The results showed that FP and NP significantly enhanced odor by reducing fishy compounds (e.g., hexanal) and i

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Yu, Xia, Deshang Meng, Qingchun Zhao, Lianting Liang, and Lili Cui. "Analysis and Comparison of Volatile Compounds in Stropharia Rugosoannulata and Tricholoma Lobayense by Headspace Solid-Phase Microextraction-Gas Chromatography-Mass Spectrometry." Current Topics in Nutraceutical Research 22, no. 4 (2024): 1132–38. http://dx.doi.org/10.37290/ctnr2641-452x.22:1132-1138.

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The volatile components of Stropharia rugosoannulata and Tricholoma lobayense were analyzed by mass spectrometry, and the relative contents of each component were determined by the internal standard method. In Stropharia rugosoannulata, 58 volatile components were identified, including 10 alcohols, 14 esters, 9 aldehydes, 5 ketones, 1 phenol, 3 alkanes, 4 amines, 5 acids, 1 furan, 1 pyrazine, 1 olefin, 1 oxime, 1 pyrazole, and 2 other components. Among them, the most abundant volatile component was hexanal (1655.40 ng/g), followed by pentanoic acid (1503.10 ng/g) and phenylethyl alcohol (1215.

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Uchuskin, Maxim, Igor Trushkov, and Anton Makarov. "Furan Oxidation Reactions in the Total Synthesis of Natural Products." Synthesis 50, no. 16 (2018): 3059–86. http://dx.doi.org/10.1055/s-0037-1610021.

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Recent developments on the transformations of furans under oxidative conditions toward the total synthesis of complex natural compounds are discussed. Reactions and methods are classified according to the type of oxidant used. Comparisons are then made between all the strategies to provide a comprehensive overview. This review covers the most prominent work published from 2011 until 2017.1 Introduction2 Reagents and Methods for Oxidation of the Furan Ring2.1 Singlet Oxygen2.2 Peroxides and Hydroperoxides2.3 Quinones2.4 Halogen-Based Oxidants2.5 Chromium-Based Oxidants3 The Achmatowicz Reaction

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Kadioglu, Onat, Sabine M. Klauck, Edmond Fleischer, Letian Shan, and Thomas Efferth. "Selection of safe artemisinin derivatives using a machine learning-based cardiotoxicity platform and in vitro and in vivo validation." Archives of Toxicology 95, no. 7 (2021): 2485–95. http://dx.doi.org/10.1007/s00204-021-03058-4.

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AbstractThe majority of drug candidates fails the approval phase due to unwanted toxicities and side effects. Establishment of an effective toxicity prediction platform is of utmost importance, to increase the efficiency of the drug discovery process. For this purpose, we developed a toxicity prediction platform with machine-learning strategies. Cardiotoxicity prediction was performed by establishing a model with five parameters (arrhythmia, cardiac failure, heart block, hypertension, myocardial infarction) and additional toxicity predictions such as hepatotoxicity, reproductive toxicity, muta

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Moreno-Piraján, Juan Carlos, César Augusto García-Ubaque, R. Fajardo, Liliana Giraldo, and Karim Sapag. "Evaluation of the dioxin and furan formation thermodynamics in combustion processes of urban solid wastes." Ecletica Quimica 32, no. 1 (2007): 15–18. http://dx.doi.org/10.26850/1678-4618eqj.v32.1.2007.p15-18.

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Specific combustion programs (Gaseq, Chemical equilibria in perfect gases, Chris Morley)are used to model dioxin and formation in the incineration processes of urban solid wastes. Thanks tothese programs, it is possible to establish correlations with the formation mechanisms postulated in li-terature on the subject. It was found that minimum oxygen quantities are required to obtain asignificant formation of these compounds and that more furans than dioxins are formed. Likewise,dioxin and furan formation is related to the presence of carbon monoxide, and dioxin and furandistribution among its d

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Schlotzhauer, WS, RF Arrendale, and OT Chortyk. "The Rapid Pyrolytic Characterization of Tobacco Leaf Carbohydrate Material." Beiträge zur Tabakforschung International/Contributions to Tobacco Research 13, no. 2 (1985): 74–80. http://dx.doi.org/10.2478/cttr-2013-0558.

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AbstractA rapid, semi-micropyrolysis technique was developed and applied to materials representative of tobacco cell-wall constituents and sucrose. Glass capillary gas chromatography - mass spectrometry was used to separate and identify the major semi-volatile pyrolyzate components. Cellulose and dextrin produced a pattern of furan and cyclic ketones of potential importance to flavour and aroma of tobacco smoke. Sucrose pyrolysis resulted in the formation of substantial amounts of 2-furaldehyde and lesser quantities of substituted furans. The cell-wall biopolymer lignin was a source of phenols

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Wailzer, Bettina, Johanna Klocker, Peter Wolschann, and Gerhard Buchbauer. "Structural Features for Furan-Derived Fruity and Meaty Aroma Impressions." Natural Product Communications 11, no. 10 (2016): 1934578X1601101. http://dx.doi.org/10.1177/1934578x1601101014.

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Furan derivatives are part of nearly all food aromas. They are mainly formed by thermal degradation of carbohydrates and ascorbic acid and from sugar-amino acid interactions during food processing. Caramel-like, sweet, fruity, nutty, meaty, and burnt odor impressions are associated with this class of compounds. In the presented work, structure-activity relationship (SAR) investigations are performed on a series of furan derivatives in order to find structural subunits, which are responsible for the particular characteristic flavors. Therefore, artificial neural networks are applied on a set of

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Kalantzi, Stefania, Sofia Leonardi, Eleanna Vachlioti, et al. "Studies towards the Synthesis of Novel 3-Aminopropoxy-Substituted Dioxins Suitable for the Development of Aptamers for Photonic Biosensor Applications." Materials 14, no. 16 (2021): 4727. http://dx.doi.org/10.3390/ma14164727.

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Hydroxy-substituted tetrachlorodibenzo[b,e][1,4]dioxin and tetrachlorodibenzo[b,d]furans have been synthesized using 3,4-dichloroanisole, 2,3,6-trichlorophenol and 4,5-dichlorocatechol as starting materials and electrophilic and/or nucleophilic aromatic substitution reactions for the assembly of the dibenzo[b,e][1,4]dioxin and dibenzo[b,d]furan systems. The thus-obtained phenolic compounds were then alkylated with N-1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl (Dde)-protected 3-bromopropan-1-amine to give the corresponding N-Dde protected 3-aminopropoxy-substituted tetrachlorodibenzo[b,e][1,

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Dadalı, Ceyda. "The Effect of Roasting on Volatile Compounds of Ground Coffee and Turkish Coffee Brew." Turkish Journal of Agriculture - Food Science and Technology 10, no. 4 (2022): 517–23. http://dx.doi.org/10.24925/turjaf.v10i4.517-523.4428.

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Roasting is the most important coffee processing stage that affects coffee flavour. Coffee brew is prepared by various methods and Turkish coffee brewing technique is one of the oldest methods among other coffee preparation techniques. In this study, volatile compounds of light, medium, dark roasted ground coffee and Turkish coffee brews prepared from light, medium, dark roasted coffees were evaluated and the effect of roasting process was determined. The volatile compounds from acid (2), alcohol (1), aldehyde (2), furan (8), furanone (3), ketone (1), lactone (1), phenol (3), pyrazine (19), py

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Althikrallah, Hanan, Casper Kunstmann-Olsen, Elena F. Kozhevnikova, and Ivan V. Kozhevnikov. "Turnover Rate of Metal-Catalyzed Hydroconversion of 2,5-Dimethylfuran: Gas-Phase Versus Liquid-Phase." Catalysts 10, no. 10 (2020): 1171. http://dx.doi.org/10.3390/catal10101171.

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Hydroconversion (hydrogenation and hydrogenolysis) of biomass-derived furanic compounds giving furan ring-hydrogenation and ring-cleavage products attracts interest for sustainable production of chemicals and fuels. Here, the hydroconversion of 2,5-dimethylfuran (DMF), chosen as a model furanic compound, was investigated at a gas-solid interface over carbon-supported Pt, Pd, Rh and Ru metal catalysts in a fixed-bed reactor at 70–90 °C and ambient pressure. Pt/C was mainly active in ring cleavage of DMF to produce 2-hexanone as the primary product, followed by its hydrogenation to 2-hexanol and

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Zhao, Yuping, Tiantian Tian, Jiming Li, et al. "Variations in Main Flavor Compounds of Freshly Distilled Brandy during the Second Distillation." International Journal of Food Engineering 10, no. 4 (2014): 809–20. http://dx.doi.org/10.1515/ijfe-2014-0123.

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Abstract The present study investigated the variations in main flavor compounds of a Chinese brandy during the second distillation process using headspace–solid-phase microextraction coupled with gas chromatography-mass spectrometry. A total of 97 volatile compounds involving esters, alcohols, aldehydes, ketones, furans, benzene derivatives and terpenes were quantified, and 28 components were identified as key ingredients. By monitoring the second distillation process, it was found that most ethyl esters (ethyl hexanoate, ethyl octanoate, etc.), alcohols (3-methylbutanol, etc.), terpenes (lina

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El Mais, Abd El Rahman, Barbara D'Anna, Luka Drinovec, et al. "Insights into secondary organic aerosol formation from the day- and nighttime oxidation of polycyclic aromatic hydrocarbons and furans in an oxidation flow reactor." Atmospheric Chemistry and Physics 23, no. 23 (2023): 15077–96. http://dx.doi.org/10.5194/acp-23-15077-2023.

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Abstract. Secondary organic aerosols (SOAs) formed by oxidation of typical precursors largely emitted by biomass burning, such as polycyclic aromatic hydrocarbons (PAHs) and furans, are still poorly characterized. We evaluated and compared the formation yields, effective density (ρeff), absorption Ångström exponent (α), and mass absorption coefficient (MAC) of laboratory-generated SOAs from three furan compounds and four PAHs. SOAs were generated in an oxidation flow reactor under day- (OH radicals) or nighttime (NO3 radicals) conditions. The ρeff, formation yields, α, and MAC of the generated

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Wang, Wenqian, Shibo Zhao, Jinjin Pei, Pengfei Jiang, Wengang Jin, and Ruichang Gao. "Antioxidative Activity and Volatile Profiles of Maillard Reaction Products between Giant Salamander (Andrias davidianus) Peptides and Glucose during the Heating Process." Journal of Food Quality 2023 (June 16, 2023): 1–12. http://dx.doi.org/10.1155/2023/8804009.

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To improve the antioxidant activity and flavor characteristics of giant salamander peptides, the changes in pH, browning extent, DPPH radical scavenging capacity, and reducing ability in Maillard reaction products (MRPs) between giant salamander peptides and glucose during the heating process (95°C and 0, 1, 2, 3, and 4 h) were investigated. The difference in volatile compounds of the MRPs was also analyzed by gas chromatography-ion mobility spectroscopy. The results indicated that the pH value of the MRPs shrank with the proceeding of heating time, while the browning extent and antioxidative

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Citterio, Attilio, Maffezzoni Tino, Maronati Antonietta та Roberto Sebastiano. "2,5-DISUBSTITUTED FURANS BY OXIDATION OF β-DICARBONYL COMPOUNDS IN THE PRESENCE OF FURAN". Organic Preparations and Procedures International 29, № 5 (1997): 590–93. http://dx.doi.org/10.1080/00304949709355239.

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Margellou, Antigoni G., Stylianos A. Torofias, Georgios Iakovou, and Konstantinos S. Triantafyllidis. "Valorization of Chlorella Microalgae Residual Biomass via Catalytic Acid Hydrolysis/Dehydration and Hydrogenolysis/Hydrogenation." Catalysts 14, no. 5 (2024): 286. http://dx.doi.org/10.3390/catal14050286.

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Microalgal biomass can be utilized for the production of value-added chemicals and fuels. Within this research, Chlorella vulgaris biomass left behind after the extraction of lipids and proteins was converted to valuable sugars, organic acids and furanic compounds via hydrolysis/dehydration using dilute aqueous sulfuric acid as a homogeneous catalyst. Under mild conditions, i.e., low temperature and low sulfuric acid concentration, the main products of hydrolysis/dehydration were monomeric sugars (glucose and xylose) and furanic compounds (HMF, furfural) while under more intense conditions (i.

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Brendle, James J., Abram Outlaw, Arvind Kumar, et al. "Antileishmanial Activities of Several Classes of Aromatic Dications." Antimicrobial Agents and Chemotherapy 46, no. 3 (2002): 797–807. http://dx.doi.org/10.1128/aac.46.3.797-807.2002.

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ABSTRACT Aromatic dicationic molecules possess impressive activity against a broad spectrum of microbial pathogens, including Pneumocystis carinii, Cryptosporidium parvum, and Candida albicans. In this work, 58 aromatic cations were examined for inhibitory activity against axenic amastigote-like Leishmania donovani parasites. In general, the most potent of the compounds were substituted diphenyl furan and thiophene dications. 2,5-Bis-(4-amidinophenyl)thiophene was the most active compound. This agent displayed a 50% inhibitory concentration (IC50) of 0.42 ± 0.08 μM against L. donovani and an i

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Królewska-Golińska, Karolina, Marcin J. Cieślak, Milena Sobczak, et al. "Novel Benzo[B]Furans with Anti-Microtubule Activity Upregulate Expression of Apoptotic Genes and Arrest Leukemia Cells in G2/M Phase." Anti-Cancer Agents in Medicinal Chemistry 19, no. 3 (2019): 375–88. http://dx.doi.org/10.2174/1871520619666181122123552.

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Background:Novel derivatives of benzo[b]furan were found to be highly toxic towards human chronic myelogenous (K562), acute myelogenous (HL-60) and acute lymphoblastic (MOLT-4) leukemia cells.Objective:The objective was the characterization of the biological activity of novel benzofurans (influence on apoptosis, mitogen-activated protein kinases and on the cell cycle). Cellular protein(s) targeted by test benzofurans and mechanism of action were identified.Methods:The methods utilized in the study were chemical synthesis, fluorescence assays, flow cytometry, gene expression by DNA microarray a

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