title: Two new 8-oxotetrahydroprotoberberine alkaloids, gusanlung A and B, from Acangelisia gusanlung.
abstract: Two new 8-oxotetrahydroprotoberberine alkaloids, gusanlung A(1) and B(2), together with known isoquinoline alkaloids, berberine and jatrorrhizine, were isolated from the Chinese medicinal plant Acangelisia gusanlung H. S. Lo (Menispermaceae). Their structures were elucidated mainly by spectroscopic analysis.
authors.affiliation: Shanghai Institute of Materia Medica, Chinese Academy of Sciences.
authors.forename: J S
authors.initials: JS
authors.lastname: Zhang
authors.forename: Z L
authors.initials: ZL
authors.lastname: Chen
mesh_terms: D001599:Berberine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure
chemical_list: D004365:Drugs, Chinese Herbal; C055785:jatrorrhizine; D001599:Berberine; C073424:gusanlung A; C073425:gusanlung B