title: Structures and Chemotaxonomic Significance of Stemona Alkaloids from Stemona japonica.
abstract: A pair of new alkaloid stereo-isomers, stemocochinin (1) and isostemocochinin (2), was obtained from the roots of Stemona japonica Miq., along with seven known alkaloids, stemonamine (3), isostemonamine (4), maistemonine (5), isomaistemonine (6), croomine (7), stemonine (8), and protostemonine (9). The complete structure and stereochemistry of the pair of isomers were established by extensive analysis of the spectral data. Furthermore, our results indicated that S. japonica is chemically closer to S. sessilifolia than S. tuberosa, which are consistent with our previous DNA study on Stemona species.
authors.forename: Min
authors.initials: M
authors.lastname: Yi
authors.forename: Xue
authors.initials: X
authors.lastname: xia
authors.forename: Hoi-Yan
authors.initials: HY
authors.lastname: Wu
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Tian
authors.forename: Chao
authors.initials: C
authors.lastname: Huang
authors.forename: Paul Pui-Hay
authors.initials: PP
authors.lastname: But
authors.forename: Pang-Chui
authors.initials: PC
authors.lastname: Shaw
authors.forename: Ren-Wang
authors.initials: RW
authors.lastname: Jiang
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000145:classification*; D015394:Molecular Structure; D041901:Stemonaceae / Q000737:chemistry*
chemical_list: D000470:Alkaloids