Results 81 to 90 of about 10,895 (224)

Stereocontrolled diversity oriented synthesis of 2H-benzopyran-based natural product-like polycyclics

open access: yes, 2005
Over the years, it has been shown that natural products that act as highly specific modulators of protein function are complex in nature, highly functionalized and contain few stereogenic centers.
Cumaranatunga-Ilangasinghe, P. Kamani
core   +1 more source

Computer programs for calculating pKa: a comparative study for 3-(3-(2-nitrophenyl)prop-2-enoyl)-2H-1-benzopyran-2-one [PDF]

open access: yesJournal of the Serbian Chemical Society, 2010
Coumarin-based compounds containing a chalcone moiety exhibit antimicrobial activity. These substances are potential drugs and it is important to determine their pKa values. However, they are almost insoluble in water.
SELMA ŠPIRTOVIĆ-HALILOVIĆ   +1 more
doaj  

Design and synthesis of benzopyran-based inhibitors of the hypoxia-inducible factor-1 pathway with improved water solubility

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2017
While progress has been made in treating cancer, cytotoxic chemotherapeutic agents are still the most widely used drugs and are associated with severe side-effects.
Jalisa H. Ferguson   +6 more
doaj   +1 more source

5′,6-Dichloro-1′,3′,3′-trimethylspiro[2H-1-benzopyran-2,2′-indoline]

open access: yesActa 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
doaj   +1 more source

Rotenone: from modelling to implication in Parkinson’s disease

open access: yesFolia 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
doaj   +1 more source

8-Hydroxy-5,6,7-trimethoxy-2-phenyl-4H-chromen-4-one

open access: yesActa 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
doaj   +1 more source

5-Hydroxy-7-methoxy-2-phenyl-4H-1-benzopyran-4-one (Tectochrysin) and 2,5-Dihydroxy-7-methoxy-2-phenyl-2,3-dihydro-4H-1-benzopyran-4-one: Isolation From Uvaria rufas and X-Ray Structures

open access: yes, 1989
5-Hydroxy-7-methoxy-2-phenyl-4H-1-benzopyran-4-one ( tectochrysin ) (1), 5-hydroxy-7,8-di-methoxy-2-phenyl-4H-1-benzopyran-4-one (7-0-methylwogonin) (2), 5-hydroxy-6,7-dimethoxy-2-phenyl-4H-1-benzopyran-4-one (6,7-O,O-dimethylbacaiein) (3) and 2,5 ...
AH White   +4 more
core   +1 more source

Solid-Phase Parallel Synthesis of Drug-Like Artificial 2<em>H</em>-Benzopyran Libraries

open access: yesMolecules, 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
doaj   +1 more source

A REVIEW OF BENZOPYRAN DERIVATIVES IN PHARMACOTHERAPY OF BREAST CANCER

open access: yes, 2018
One of the naturally occurring compounds containing oxygen moiety is benzopyran. Depending on its substitution pattern, different biological effects are shown. The benzopyran ring system is present in many natural products (such as genistein, hesperidin,
Md. Azizur, Rahman   +4 more
core  

Synthesis and Antimicrobial Activities of Some Sulphur Containing Chromene Derivatives

open access: yesNatural 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
doaj   +1 more source

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