Eight glycosides of 2α, 19α-dihydroxyoleanolic acid derivatives, includingtrachelosperosidesD-1, D-2, E-1, F-2, and arjungenin-23, 28-bis-Ο-glucoside and-28-Ο-xylopyranosyl- (1→2) -gluco-pyranoside, were isolated from the whole plant of Trachelospermum asiaticum, along with the known glucosides arjunglucoside I and arjungenin-3, 28-bis-Ο-glucoside, and their structures were determined.
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Abe et al. (1987) studied this question.