Chemical constituents from Drypetes littoralis

Citation
Mt. Lin et al., Chemical constituents from Drypetes littoralis, J NAT PROD, 64(6), 2001, pp. 707-709
Citations number
19
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Agricultural Chemistry","Pharmacology & Toxicology
Journal title
JOURNAL OF NATURAL PRODUCTS
ISSN journal
0163-3864 → ACNP
Volume
64
Issue
6
Year of publication
2001
Pages
707 - 709
Database
ISI
SICI code
0163-3864(200106)64:6<707:CCFDL>2.0.ZU;2-U
Abstract
Chemical investigation of Drypetes littoralis yielded three new tricyclic d iterpenes, drypetenones A, B, and C (1-3), and one new xanthone (4). Spectr al analyses and chemical correlations established the structures as 10S-12- hydroxy-11-methoxy-13-methylpodocarpa-1,5,8,11,13-pentaene-3,7-dione, (1), 10S-12-hydroxy-11-methoxy-13-methylpodocarpa 10S-12-hydroxy-6,11dimethoxy-1 3-methylpodocarpa-1,5,8, 11,13-pentaene-3,7-dione (3), and 1-hydroxy-7-hydr oxymethyl-6-methoxyxanthone (4). Complete C-13 NMR assignment of boehmenan D (5) is also made.