Abstract
The novel iridoid glycosides, isounedoside and grandifloric acid, were isolated from Thunbergia grandiflora. Grandifloric acid contains C-10 as a carboxylic acid group, the presence of which was predicted by recent iridoid biosynthesis studies carried out within T. alata. Isounedoside contains a rare 6,7-epoxide functional group. A revision in some of the NMR spectral assignments for the known iridoid glycoside alatoside was also made.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Diterpenes / chemistry*
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Diterpenes / isolation & purification
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Glucosides / chemistry*
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Glucosides / isolation & purification
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Molecular Structure
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Plant Extracts
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Plants, Medicinal*
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Pyrans / chemistry*
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Pyrans / isolation & purification
Substances
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Diterpenes
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Glucosides
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Plant Extracts
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Pyrans
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isounedoside
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grandifloric acid