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Teucrol, a decarboxyrosmarinic acid and its 4'-O-triglycoside, teucroside from Teucrium pilosum
A M El-Mousallamy1, U W Hawas, S A Hussein
1Department of Chemistry, Faculty of Science, Zagazig University, National Research Centre, El-Dokki, Cairo, Egypt.
Phytochemistry
|January 5, 2001
Abstract:
Teucrol, a decarboxy rosmarinic acid and its triglycoside, teucroside, 9'-decarboxyrosmarinic acid-4'-O-alpha-rhamnosyl-(1'''-->6''')-O-beta-galactosyl-(1'''-->4'')-O-alpha-rhamnoside, are two new natural phenolics which have been isolated and identified from the aqueous alcohol extract of the whole plant of Teucrium pilosum (Decne) Asch. & Schweinf. (Lamiaceae). Structures were determined by conventional methods of analysis and confirmed by MS and NMR spectral analysis, including 2D-homonuclear COSY experiment.