Teydealdehyde, a C23-terpenoid from Transformed Root Cultures of Nepeta Teydea
Chem Inform(2013)
摘要
Teydealdehyde, a C23-terpenoid with a new carbon skeleton, has been isolated from Nepeta teydea root cultures transformed by Agrobacterium rhizogenes. Its structure, determined from HRMS, 1D and 2D NMR data, shows four cycles with a five membered A ring deoxygenated at C-3 and with a C-2 aldehyde group at C-1. The B-, C- and D-rings are similar to those of the oleanane, ursane and lupane triterpenes, but the last cycle contains an α,β-unsaturated ketone as the result of a ring E biodegradation process of a pentacyclic triterpene precursor.
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关键词
Nepeta teydea,Transformed root cultures,Teydealdehyde,Degraded triterpene
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