PREGNANE GLYCOSIDES FROM CARALLUMA-UMBELLATA

Authors
LIN LJ LIN LZ GIL RR CORDELL GA RAMESH M SRILATHA B REDDY B RAO AVNA
Citation
Lj. Lin et al., PREGNANE GLYCOSIDES FROM CARALLUMA-UMBELLATA, Phytochemistry, 35(6), 1994, pp. 1549-1553
Citations number
20
Categorie Soggetti
Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
35
Issue
6
Year of publication
1994
Pages
1549 - 1553
Database
ISI
SICI code
0031-9422(1994)35:6<1549:PGFC>2.0.ZU;2-E
Abstract
From Caralluma umbellata, two new pregnane glycosides, named carumbell oside I and II, were isolated and their structures and stereochemistry were elucidated by a combination of NMR techniques as 3-O-beta-D-gluc opyranosyl-(1 ->6)-beta-D-glucopyranosyl-3 beta, 14 beta-dihydroxypreg n-5-en-20-one and 3-O-beta-D-glucopyranosyl-3 beta,14 beta-dihydroxypr egn-5-en-20-one. The ambiguous assignments were resolved through molec ular modelling comparisons.