Publications by authors named "Shaista Azaz"

The quantum chemical study, spectroscopic characterization and biological activity of the pharmaceutically active 7-benzoyloxycoumarin (2) molecule have been presented. Potential energy surface (PES) scanning has been performed to search for the most stable molecular geometry of the present compound. The stable geometry in the ground state, IR, UV-Vis absorption and NMR (C, H) spectra of the title compound were theoretically obtained and compared with the experimental one.

View Article and Find Full Text PDF

Garcinia nervosa is an abundant source of bioactive phytochemicals. The present paper deals with the isolation of a novel isoflavone 5,7-dihydroxy-3-(3'-hydroxy-4',5'-dimethoxyphenyl)-6-methoxy-4H-chromen-4-one (1) along with a known compound DL-Allantoin (2) from the ethanolic extract of the leaves of Garcinia nervosa (Family: Guttiferae). Their structures were elucidated on the basis of chemical and physical evidences viz.

View Article and Find Full Text PDF

Phytochemical investigations of the ethanolic extract of leaves of Clutia lanceolata (Family: Euphorbiaceae) resulted in the isolation of four compounds viz. 3,4-dihydroxy-2-methylbenzoic acid (1), 2,2'-dihydroxy-1,1'-binaphthyl (2), 1,3,8-trihydroxy-6-methylanthracene-9,10-dione (3) and 5-hydroxy-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,4,6-trien-3-one (4). Although all the isolated compounds were known but this was the first report from this plant source.

View Article and Find Full Text PDF

A novel 6-hydroxy-8,11,11-trimethyl-bicyclo[7.2.0]undec-4-ene-4-carboxylic acid 1 has been isolated from leaves of Iphiona scabra DC.

View Article and Find Full Text PDF