Abstract
Investigation of the stem extract of Piper philippinum led to isolation of eight compounds, piperphilippinins I-VI (1-6), philippinamide (7), and (+)-bornyl caffeate (8), together with 26 known compounds. Among the isolates, (-)-3',4'-O,O-demethylenehinokinin (10) and 3,4-methylenedioxycinnamaldehyde (23) showed anti-platelet activities in vitro.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Amides* / isolation & purification
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Amides* / pharmacology
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Animals
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Blood Platelets / drug effects
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In Vitro Techniques
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Lignans* / isolation & purification
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Lignans* / pharmacology
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Piper / chemistry*
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Plant Extracts / isolation & purification
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Plant Extracts / pharmacology
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Plant Stems / chemistry
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Platelet Aggregation Inhibitors* / isolation & purification
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Platelet Aggregation Inhibitors* / pharmacology
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Rabbits
Substances
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Amides
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Lignans
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Plant Extracts
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Platelet Aggregation Inhibitors