New pentacyclic triterpenic esters from the roots of Calotropis gigantea

Authors
Ali, M Gupta, J
Citation
M. Ali et J. Gupta, New pentacyclic triterpenic esters from the roots of Calotropis gigantea, I J CHEM B, 38(7), 1999, pp. 877-881
Citations number
9
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY
ISSN journal
03764699 → ACNP
Volume
38
Issue
7
Year of publication
1999
Pages
877 - 881
Database
ISI
SICI code
0376-4699(199907)38:7<877:NPTEFT>2.0.ZU;2-5
Abstract
Phytochemical studies on the roots of Calotropis gigantea resulted in the i solation of one new lupene type triterpene identified as lup-13 (18), 19 (2 9)-dien-9 alpha-yl acetate and lupeol acetate and two new ursane type trite rpenes characterized as urs-18 beta-H-12, 20(30)-dien-3 beta-yl acetate and 17 beta-hydroxy-28-normethyl urs-18 alpha-H-12, 20 (30)-dien-3 beta-yl ace tate on the basis of spectral data analyses and chemical reactions.