C-18 AND C-19 QUASSINOIDS FROM EURYCOMA-LONGIFOLIA

Authors
ITOKAWA H QIN XR MORITA H TAKEYA K
Citation
H. Itokawa et al., C-18 AND C-19 QUASSINOIDS FROM EURYCOMA-LONGIFOLIA, Journal of natural products, 56(10), 1993, pp. 1766-1771
Citations number
12
Categorie Soggetti
Chemistry,"Plant Sciences","Pharmacology & Pharmacy
Journal title
Journal of natural products → ACNP
ISSN journal
01633864
Volume
56
Issue
10
Year of publication
1993
Pages
1766 - 1771
Database
ISI
SICI code
0163-3864(1993)56:10<1766:CACQFE>2.0.ZU;2-B
Abstract
Two new 1,2-seco-1-nor-6(5-->10)abeo-picrasan-2,5-olide skeleton quass inoids, eurylactones A [1] and B [2], and two new C19 skeleton quassin oids 3 and 4 were isolated from Eurycoma longifolia together with two known C18 quassinoids 5 and 6. Their structures were established by th e spectral evidence.