Abstract
Two new compounds were isolated from the stems of Dendrobium candidum: (R)-3,4-dihydroxy-5,4',alpha-trimethoxybibenzyl (1), named dendrocandin A; and 4-[2-[(2S,3S)-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-hydroxymethyl-8-methoxy-2,3-dihydrobenzo[1,4]dioxin-6-yl]ethyl]-1-methoxyl benzene (2), dendrocandin B. Five previously known bibenzyls were also identified: 4,4'-dihydroxy-3,5-dimethoxybibenzyl (3), 3,4-dihydroxy-5,4'-dimethoxybibenzyl (4), 3-O-methylgigantol (5), dendrophenol (6), and gigantol (7).
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Chromatography, High Pressure Liquid
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Circular Dichroism
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Dendrobium / chemistry*
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Dioxanes / chemistry*
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Dioxanes / isolation & purification
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Magnetic Resonance Spectroscopy
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Plant Stems / chemistry
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Spectrometry, Mass, Electrospray Ionization
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Spectrophotometry, Infrared
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Spectrophotometry, Ultraviolet
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Stilbenes / chemistry*
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Stilbenes / isolation & purification
Substances
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3,4-dihydroxy-5,4',alpha-trimethoxybibenzyl
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4-(2-(3-(4-hydroxy-3,5-dimethoxyphenyl)-2-hydroxymethyl-8-methoxy-2,3-dihydrobenzo(1,4)dioxin-6-yl)ethyl)-1-methoxybenzene
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Dioxanes
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Stilbenes