Polycyclic monoterpenoid indole alkaloids from Alstonia rostrata and their reticulate derivation

Publication date: June 2017 Source:Phytochemistry Letters, Volume 20 Author(s): Xiu-Hong Zhong, Mei-Fen Bao, Chun-Xia Zeng, Bing-Jie Zhang, Jing Wu, Yu Zhang, Xiang-Hai Cai Five new alkaloids together with 20 known ones were isolated from Alstonia rostrata, and identified on the base of NMR, MS, UV and IR spectroscopic data. Additionally, alstrostine G (1) possessed an unprecedented 6/5/6/6/5/6-ring system. The analysis of those alkaloids’ biosynthetic pathway partly indicated their reticulate metabolic relationship. The research result disclosed diverse biogenesis of monoterpenoid indole alkaloids from Alstonia rostrata speciesin combination with previous reported alstrostine A. Graphical abstract

Source: Phytochemistry Letters - June 7, 2017 Category: Chemistry Source Type: research