BRODIOSIDE B, A NOVEL (20R,22S)-SPIROSTANOL TETRASACCHARIDE FROM BRODIAEA-CALIFORNICA TUBERS

Authors
NAKAMURA O MIMAKI Y SASHIDA Y NIKAIDO T OHMOTO T
Citation
O. Nakamura et al., BRODIOSIDE B, A NOVEL (20R,22S)-SPIROSTANOL TETRASACCHARIDE FROM BRODIAEA-CALIFORNICA TUBERS, Chemistry Letters, (4), 1994, pp. 805-808
Citations number
11
Categorie Soggetti
Chemistry
Journal title
Chemistry Letters → ACNP
ISSN journal
03667022
Issue
4
Year of publication
1994
Pages
805 - 808
Database
ISI
SICI code
0366-7022(1994):4<805:BBAN(T>2.0.ZU;2-O
Abstract
A novel (20R,22S)-spirostanol tetrasaccharide, named brodioside B, was isolated from Brodiaea californica together with a new (25S)-ruscogen in tetrasaccharide, named brodioside A. Their structures were determin ed by extensive 2D NMR analysis and hydrolysis. Brodiosides A and B we re active as a cyclic AMP phosphodiesterase inhibitor.