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Triterpenoid glycosides and a triterpene from Ilex brevicuspis
A T Taketa1, T Schmittmann-Schlager, D Guillaume
1Kekulé-Institut für Organische Chemie und Biochemie, Rheinischen Friedrich-Wilhelms-Universität, Bonn, Germany.
Phytochemistry
|May 23, 2000
Abstract:
Two saponins and a sapogenin were isolated from the leaves of Ilex brevicuspis. Their structures were established by means of spectroscopic methods as brevicuspisaponin 1 (3-O-alpha-L-arabinopyranosyl-20(S)-19 alpha,24-dihydroxyursolic acid), brevicuspisaponin 2 (3-O-alpha-L-arabinopyranosyl-20(S)-19 alpha,23,24-trihydroxyursolic acid) and 23-methylester of 20(S)-3 beta,19 alpha,24-trihydroxyurs-12-en-23,28-dioic acid.