Three new pentacyclic triterpenes, identified as olean-11-one-13(18)-ene 1, urs-3-one 2 and 30-desmethyl-urs-3-on-20-ol 4 and one unknown alicyclic glycoside, 10-nonylcyclohex-12-ene-11-glucoside 7 have been isolated from the root bark of Mangifera indica cultivar Desi in addition to the known compounds β-sitosterol glycoside, mangiferin and isomangiferin. The structures of these phytoconstituents have been established on the basis of spectral data and chemical transformation.
pentacyclic triterpene, root bark, Mangifera indica, alicyclic glycoside
Journal NLM ID: 7613423WWW link: http://nopr.niscair.res.in/bitstream/123456789/16618/1/IJCB%2038B%289%29%201093-1098.pdfInstitutions: Faculty of Pharmacy, Jamia Hamdard (Hamdard University), P.O. Hamdard Nagar, New Dehli 100062, India
Methods: 1H NMR, EI-MS, IR, TLC, alkaline hydrolysis, UV, optical rotation measurement, acetylation, HCl hydrolysis
Found