ENT-KAURENE DITERPENOIDS FROM RABDOSIA-LEUCOPHYLLA

Authors
LIAO X DING LS PENG SL
Citation
X. Liao et al., ENT-KAURENE DITERPENOIDS FROM RABDOSIA-LEUCOPHYLLA, Phytochemistry, 47(2), 1998, pp. 247-250
Citations number
7
Categorie Soggetti
Biology,"Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
47
Issue
2
Year of publication
1998
Pages
247 - 250
Database
ISI
SICI code
0031-9422(1998)47:2<247:EDFR>2.0.ZU;2-R
Abstract
Four new ent-kaurenoids, leucophyllin A-D, were isolated from the aeri al part of Rabdosia leuco-phylla. Their structures were elucidated on the basis of spectroscopic and chemical evidence as ent-1 beta-hydroxy -3 alpha,7 alpha,11 alpha- triacetoxykaur-16-en-6,15-dione, ent-1 beta ,11 alpha-dihydroxy-3 alpha,7 alpha-diacetoxykaur-16-en-6,15-dione,ent - 1 beta,11 alpha,15 alpha-trihydroxy-3 alpha,7 alpha-diacetoxykaur-16 -en-6-one and ent-6 beta,11 alpha-dihydroxy-1 beta,3 alpha,7 alpha-tri acetoxykaur- 16-en-15-one. The structure of leucophyllin C was also co nfirmed by X-ray crystallographic analysis. (C) 1997 Elsevier Science Ltd.