title: Hasubanan type alkaloids from Stephania longa.
abstract: Thirteen new hasubanan type alkaloids, stephalonines A-I (1-9), norprostephabyssine (15), isoprostephabyssine (16), isolonganone (18), and isostephaboline (21), as well as nine known ones, were isolated from the whole plants of Stephania longa, a well-known traditional Chinese medicine. Their structures were elucidated on the basis of spectroscopic data and chemical methods.
authors.affiliation: State Key Laboratory of Drug Research, Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, People's Republic of China.
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Yue
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification*; D008516:Medicine, Chinese Traditional; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D031607:Stephania / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D010636:Phenols