| Literature DB >> 10096852 |
H Chávez1, A Estévez-Braun, A G Ravelo, A G González.
Abstract
The new nortriterpene methylene quinones amazoquinone (1) and (7S, 8S)-7-hydroxy-7,8-dihydro-tingenone (2), and the new norphenolic triterpenes 7,8-dihydro-6-oxo-tingenol (3), 23-nor-6-oxo-tingenol (4), and 23-oxo-iso-tingenone (5) were isolated from Maytenus amazonica. Their structures were elucidated by spectroscopic methods. Compounds 1, 2, 3, and 5 showed low antitumor activity against four cancer cell lines.Entities:
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Year: 1999 PMID： 10096852 DOI： 10.1021/np980412+
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050