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.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Aldehyde Reductase / antagonists & inhibitors
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Animals
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Antineoplastic Agents, Phytogenic / chemistry*
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Antineoplastic Agents, Phytogenic / isolation & purification
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Antineoplastic Agents, Phytogenic / pharmacology
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Drug Screening Assays, Antitumor
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Enzyme Inhibitors / chemistry
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Enzyme Inhibitors / isolation & purification
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Enzyme Inhibitors / pharmacology
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Humans
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Mice
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Mice, Inbred DBA
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Peru
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Plants, Medicinal / chemistry*
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Quinones / chemistry*
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Quinones / isolation & purification
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Quinones / pharmacology
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Triterpenes / chemistry*
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Triterpenes / isolation & purification
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Triterpenes / pharmacology
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Tumor Cells, Cultured
Substances
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Antineoplastic Agents, Phytogenic
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Enzyme Inhibitors
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Quinones
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Triterpenes
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Aldehyde Reductase