Results 61 to 70 of about 8,330 (182)
5′,6-Dichloro-1′,3′,3′-trimethylspiro[2H-1-benzopyran-2,2′-indoline]
Acta Crystallographica Section E, 2008 In the crystal structure of the title compound, C19H17Cl2NO, the indoline and benzopyran ring systems are approximately perpendicular to each other. The indoline ring is in an envelope conformation with the spiro C atom as the flap.
Nameer Alhashimy +3 more
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Rotenone: from modelling to implication in Parkinson’s disease
Folia Neuropathologica, 2019 Rotenone ([2R-(2α,6aα,12aα)]-1,2,12,12a-tetrahydro-8,9-dimethoxy-2-(1-methylethenyl)-[1]benzopyran[3,4-b]furo [2,3-h][1]benzopyran-6(6aH)-one) is a naturally occurring compound derived from the roots and stems of Derris, Tephrosia, Lonchocarpus and ...
Khaled Radad +6 more
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8-Hydroxy-5,6,7-trimethoxy-2-phenyl-4H-chromen-4-one
Acta Crystallographica Section E, 2008 In the title compound, C18H16O6, the benzopyran group is essentially planar, with the O atoms of the substituent groups lying close to its mean plane. The molecular conformation is governed by intramolecular interactions.
J. Ellena +4 more
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Synthesis and Antimicrobial Activities of Some Sulphur Containing Chromene Derivatives
Natural Product Communications, 2012 A series of 3,3-dimethyl-3 H benzothieno[3,2- f ][1]-benzopyran analogues modified at the pyran 1,2-double bond were synthesized. The corresponding dihydro and (±)-cis-diol derivatives were converted into diacetate and cyclic carbonate upon acylation ...
Tuba Şerbetçi +4 more
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Solid-Phase Parallel Synthesis of Drug-Like Artificial 2<em>H</em>-Benzopyran Libraries
Molecules, 2012 This review covers the construction of drug-like 2<em>H</em>-benzopyrans and related libraries using solid-phase parallel synthesis. In this context, the preparation of substituted benzopyrans such as mono-, di- and trisubstituted benzopyran ...
Young-Dae Gong, Taeho Lee
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Synthesis of benzofurans and benzopyrans
, 2002 Syntheses of 2,3-dihydrobenzofurans and 3,4-dihydrobenzopyrans normally involve several stages, therefore efficient syntheses of these compounds are desirable. A number of 3,4-dihydrobenzopyrans derivatives were prepared in one pot syntheses. The reaction is thought to proceed through cation intermediates, involving allylic cations generated by the ...
openaire +4 more sources
Benzopyran-chalcone derivatives as potential anti-ovarian cancer agents via DNA damage induction
Results in ChemistryOvarian cancer (OC) is one of the most lethal gynecologic malignancies affecting women worldwide, with chemotherapy remaining the primary clinical treatment.
Yihang Wu +7 more
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NATURAL COVALENTLY COMBINED DERIVATIVES OF 2H-1-BENZOPYRAN-2-ONE
Разработка и регистрация лекарственных средств, 2019 Coumarins, known as 2Н-1-benzopyran-2-one (or 2H-chromen-2-one), are present in remarkable amounts in plants, also have been detected in microorganisms and animal sources.
A. Z. Abyshev, C. B. Nguyen
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Acta Crystallographica Section E, 2009 The title compound (systematic name: 4-{[(2E)-5-hydroxy-3,7-dimethylocta-2,6-dien-1-yl]oxy}-7H-furo[3,2-g][1]benzopyran-7-one), C21H22O5, is a known furanocoumarin, which was isolated from the Chinese herbal product Radix seu Rhizoma Notopterygii.
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Bulletin of the Chemical Society of Ethiopia, 2011 Different benzopyran and 3-substituted coumarin derivatives were synthesized by a green and practical procedure in the presence of catalytic amount of Brønsted acid ionic liquid (BAIL) [(CH2)4SO3HMIM][HSO4] in water.
Majid M. Heravi +4 more
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