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.
Original language | English |
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Pages (from-to) | 434-436 |
Number of pages | 3 |
Journal | Journal of Natural Products |
Volume | 62 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1999 |
Externally published | Yes |