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Pterocarpans, a special kind of isoflavonoids owing two contiguous benzofuran and benzopyran rings, are also known to display several biological activities (Militao et al.

Activity of three cytotoxic isoflavonoids from Erythrina excelsa and Erythrina senegalensis (neobavaisoflavone, sigmoidin H and isoneorautenol) toward multi-factorial drug resistant cancer cells

Preparing 3- methyl-1- phenyl- 4-(3'- methyl- 1- phenyl- 4 , 5 - dihydro- 5 - oxopyrazol- 4 - yl- pyrazolo [5, 4-d] -4H-1- benzopyran (1a) In a round-bottom emery-top balloon, the mixture of 2 grams (0.011 mol) 3-methyl-1-phenyl-2- pyrazolin-5-on, 0.70 grams (0.006 mol) 2-hydroxy benzaldehyde and 50 mL ethanol, in presence of 0.5 mL hydrochloric acid, was refluxed on a steam bath for 36 hr.

Preparing 3- methyl- 1- phenyl- 4-(3'- methyl- 1- phenyl- 4'- hydro- 5'- hydroxy- 5'- oxopyrazol- 4'- yl- pyrazolo [5, 4-d] - 4H-1- benzopyran (1b) Mp: 198-200 C (hexaneEt2O); 1H NMR (400 MHz, CDCl3) d 2.45 (s, J=7Hz, 3H, -CH3), 3.17 ( s, 3H, -CH3), 4.20 (s, J=7Hz, 2H, 2OH), 5.60 (s, 2H, Pyrazol), 6.70-7.72 (m, J=7Hz, 14H, Aromatic- H); 13 C NMR (CDCl3) d 12.1, 12.2, 24.00, 113.00, 119.00, 119.1, 120.2, 120.3, 122.7, 126.00, 126.3, 126.4, 128.00, 128.2, 129.4, 129.5, 129.7, 129.8, 131.7, 139.8, 139.9, 141.8, 147.00, 147.6, 147.7, 152.6; EIMS m/z 450 (M+, 85.63); Anal.

One Pot Synthesis Of 3-Methyl-1-Phenyl-4-(3'-Methyl-1-Phenyl-4', 5'-Dihydro-5'- Oxopyrazol-4'-yl- Pyrazolo [5, 4- d]-4H-1-Benzopyran Derivatives

The other coumarin, scoparone (4) is a dimethoxy esculetin has comparatively less active with glycerol release of 126.28 [+ or -] 3.2 nmol/ml and isoscoparone (3) is lesser active with glycerol release of 87.87 [+ or -] 3.2 nmol/ml which signifies that the basic moiety, benzopyran is active in the lipolysis assay.

Evaluation of anti-obesity effect of Aegle marmelos leaves

donovani ius -6'-methoxy-3', 5 -dimethylchalcone (ii) 2, 2, 4'-Trihydroxy -6'- methoxy-3, 5'-dimethylchalcone (iii) Dalrubone (Benzopyran. L.

Plant derived therapeutics for the treatment of Leishmaniasis

cerasoides several prenylated benzopyran derivatives (Zafra-Polo et al.

Polyalthidin: new prenylated benzopyran inhibitor of the mammalian mitochondrial respiratory chain.

Antiproliferative, apoptotic and antimutagenic activity of isolated compounds from Polyalthia cerasoides seeds

Within each skeletal group, compounds are ordered into hydrocarbons, acids, aldehydes, ketones, alcohols, esters, ethers, chlorinated compounds, benzofurans, benzopyrans, and nitrogen-containing compounds.

Diversity and distribution of floral scent

The metabolites investigated were dimeric phloroglucinol derivatives, benzophenones and benzopyrans. The yields were expressed as mean of three injections in mg of compound per g of extract (mg/g extract).

Leishmanicidal activity of lipophilic extracts of some Hypericum species

Its main components are phenolic compounds (flavonoids, aromatic acids, benzopyranes), di- and triterpenes, essential oils, among others.

In vitro effects of propolis on Giardia duodenalis trophozoites

chromene

chro·mene