CHEMICAL STRUCTURES OF EXCOECARIN-A, EXCOECARIN-B AND EXCOECARIN-C - 3 NEW LABDANE-TYPE DITERPENES FROM WOOD, EXCOECARIA-AGALLOCHA

Authors
KONISHI T KIYOSAWA S KONOSHIMA T FUJIWARA Y
Citation
T. Konishi et al., CHEMICAL STRUCTURES OF EXCOECARIN-A, EXCOECARIN-B AND EXCOECARIN-C - 3 NEW LABDANE-TYPE DITERPENES FROM WOOD, EXCOECARIA-AGALLOCHA, Chemical and Pharmaceutical Bulletin, 44(11), 1996, pp. 2100-2102
Citations number
7
Categorie Soggetti
Pharmacology & Pharmacy",Chemistry
Journal title
Chemical and Pharmaceutical Bulletin → ACNP
ISSN journal
00092363
Volume
44
Issue
11
Year of publication
1996
Pages
2100 - 2102
Database
ISI
SICI code
0009-2363(1996)44:11<2100:CSOEEA>2.0.ZU;2-E
Abstract
There new diterpenes, excoecarius A. (2), B (3) and C (4) have been is olated from the wood of Excoecaria agullocha LINN. The structures of e xcoecarins A, B and C mere established as (13R,14R)-ent-8 alpha,13;14, 15-diepoxy-13-epi-labda-3-one (2), (13R.14S)-ent-8 alpha,13;14,15-diep oxy-13-epi-labda-3-one (3), (13R,14R)-ent-8 alpha,13,14,15-diepoxy-13- epi-labda-3 beta-ol (4), respectively, on the basis of spectroscopic d ata and chemical evidence.