Four new triterpenes from the heartwood of Melaleuca leucadendron

Authors
Lee, CK Chang, MH
Citation
Ck. Lee et Mh. Chang, Four new triterpenes from the heartwood of Melaleuca leucadendron, J NAT PROD, 62(7), 1999, pp. 1003-1005
Citations number
14
Categorie Soggetti
Agricultural Chemistry","Pharmacology & Toxicology
Journal title
JOURNAL OF NATURAL PRODUCTS
ISSN journal
01633864 → ACNP
Volume
62
Issue
7
Year of publication
1999
Pages
1003 - 1005
Database
ISI
SICI code
0163-3864(199907)62:7<1003:FNTFTH>2.0.ZU;2-Y
Abstract
Four new triterpenes, eupha-7,24-diene-3 beta,22 beta-diol (1), 20-taraxast ene-3 alpha,28-diol (2), 3 alpha,27-dihydroxy-28,20 beta-taraxastanolide (3 ), and 3 alpha-hydroxy-13(18)-oleanene-27,28-dioic acid (4) have been isola ted from the heartwood of Melaleuca leucadendron. The structures and stereo chemistry of 1-4 have been determined by spectroscopic analysis, with compo unds 3 and 4 being investigated in the forms of their diacetate (3a) and di methyl (4a) derivative, respectively.