title: Steroidal alkaloids from Cryptolepis obtusa.
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.
authors.affiliation: CECF-Faculty of Pharmacy, University of Lisbon, Portugal.
authors.forename: A
authors.initials: A
authors.lastname: Paulo
authors.forename: M L
authors.initials: ML
authors.lastname: Jimeno
authors.forename: E T
authors.initials: ET
authors.lastname: Gomes
authors.forename: P J
authors.initials: PJ
authors.lastname: Houghton
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D000470:Alkaloids; D013256:Steroids