title: Two new aspidosperma indole alkaloids from Yunnan Kopsia arborea.
abstract: Two new indole alkaloids, kopsiyunnanines G (1) and H (2), possessing the Aspidosperma skeleton were isolated from the aerial part of Yunnan Kopsia arborea BLUME (Apocynaceae). Their structures and stereochemistry were elucidated by means of MS and 2D NMR analyses.
authors.affiliation: Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan.
authors.forename: Yuqiu
authors.initials: Y
authors.lastname: Wu
authors.forename: Mariko
authors.initials: M
authors.lastname: Kitajima
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Kogure
authors.forename: Yunsong
authors.initials: Y
authors.lastname: Wang
authors.forename: Rongping
authors.initials: R
authors.lastname: Zhang
authors.forename: Hiromitsu
authors.initials: H
authors.lastname: Takayama
mesh_terms: D029062:Apocynaceae / Q000737:chemistry*; D026121:Indole Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010936:Plant Extracts / Q000737:chemistry
chemical_list: D026121:Indole Alkaloids; D010936:Plant Extracts; C552649:kopsiyunnanine G; C552650:kopsiyunnanine H