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Steroidal alkaloids from Cryptolepis obtusa
A Paulo1, M L Jimeno, E T Gomes
1CECF-Faculty of Pharmacy, University of Lisbon, Portugal.
Phytochemistry
|March 7, 2000
Abstract:
Two novel diglycosylated steroidal alkaloids of 5 delta-pregnene nucleus, named obtusine-20(R)-O-[beta-thevetopyranosyl-(1-->4)-beta-cyma ropyranoside] and obtusolactam-20(R)-O-[beta-thevetopyranosyl-(1-->4)-beta- cymaropyranoside], together with the known beta-sitosteryl-3-O-beta-glucopyranoside were isolated from the roots of Cryptolepis obtusa N. E. Br.