title: New curare alkaloids. II. New bisbenzylisoquinoline alkaloids from Abuta grisebachii (Menispermaceae).
abstract: From Abuta grisebachii Triana & Planchon, Menispermacea used by Sanama tribe for the preparation of curare, five bisbenzylisoquinoline alkaloids have been isolated; four of them are tertiary (peinamine and three new alkaloids, 7-O-demethylpeinamine, N-methyl,7-O-demethylpeinamine and macolidine) and one is a new quaternary alkaloid called macoline. Their structures have been elucidated on the basis of chemical reactions and spectroscopic data.
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D002021:Buffers; D007202:Indicators and Reagents; D007546:Isoquinolines / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000032:analysis*
chemical_list: D000470:Alkaloids; D002021:Buffers; D007202:Indicators and Reagents; D007546:Isoquinolines