Two new aspidosperma indole alkaloids from Yunnan Kopsia arborea.
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.
Wu
Yuqiu
Y
Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan.
Kitajima
Mariko
M
Kogure
Noriyuki
N
Wang
Yunsong
Y
Zhang
Rongping
R
Takayama
Hiromitsu
H
D029062:Apocynaceae / Q000737:chemistry*; D026121:Indole Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010936:Plant Extracts / Q000737:chemistry
D026121:Indole Alkaloids; D010936:Plant Extracts; C552649:kopsiyunnanine G; C552650:kopsiyunnanine H