title: Alkaloids from the roots of Stemona saxorum.
abstract: Five new Stemona alkaloids, cochinchistemoninone (1), stemokerrin-N-oxide (2), oxystemokerrilactone (3), saxorumamide (4a), and isosaxorumamide (4b), as well as 12 known compounds, were isolated from the roots of Vietnamese Stemona saxorum. The structures of these alkaloids were characterized on the basis of spectroscopic methods.
authors.affiliation: State Key Laboratory of Drug Research, Shanghai 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: Ya-Zhou
authors.initials: YZ
authors.lastname: Wang
authors.forename: Chun-Ping
authors.initials: CP
authors.lastname: Tang
authors.forename: Pham-Huu
authors.initials: PH
authors.lastname: Dien
authors.forename: Yang
authors.initials: Y
authors.lastname: Ye
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D041901:Stemonaceae / Q000737:chemistry*; D014744:Vietnam
chemical_list: D000470:Alkaloids