Abstract
Three new labdane diterpenoids were isolated from the aerial parts of Stachys plumosa. The first two (1, 2) were the dextrorotatory enantiomers of the known 6-deoxyandalusol and 13-epijabugodiol. Structures were determined using NMR and MS techniques. The absolute stereochemistry of the third compound (3) was not experimentally proved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Chromatography, Gas
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Chromatography, Gel
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Diterpenes / chemistry
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Diterpenes / isolation & purification*
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Gas Chromatography-Mass Spectrometry
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Italy
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Lamiaceae / chemistry*
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Magnetic Resonance Spectroscopy
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Optical Rotation
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Plant Leaves / chemistry
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Plant Stems / chemistry
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Spectrophotometry, Ultraviolet
Substances
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(15-acetoxy-labd-13-ene-8alpha,18-diol)plumosol
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(16,18-dihydroxy-13-epimanoyl-oxide)-13-epijabugodiol
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(8alpha,18-dihydroxy-lambda-13(16),14-diene)-6-deoxyandalusol
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Diterpenes