Abstract
Two new triterpenoids, nidemin (1), a modified lanostane, and 9,19-cyclolanosta-24,24-dimethyl-25-en-3beta-yl trans-p-hydroxycinnamate (2) have been isolated from the orchids Nidema boothii and Scaphyglottis livida, respectively. The isolates were characterized by spectral methods. The structure of nidemin (1) was unambiguously confirmed by X-ray analysis.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Chromatography, Thin Layer
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Crystallography, X-Ray
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Hydrolysis
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Mass Spectrometry
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Mexico
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Molecular Conformation
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Molecular Structure
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Orchidaceae / chemistry*
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Plants, Medicinal / chemistry*
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Stereoisomerism
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Steroids / chemistry
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Steroids / isolation & purification*
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Triterpenes / chemistry
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Triterpenes / isolation & purification*
Substances
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9,19-cyclolanosta-24,24-dimethyl-25-en-3-ylhydroxycinnamate
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Steroids
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Triterpenes
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nidemin