Two new alkaloids from the rhizome of Polygonatum sibiricum
Title:
Two new alkaloids from the rhizome of Polygonatum sibiricum
Author:
Sun, Long-Ru Li, Xian Wang, Su-Xian
Appeared in:
Journal of Asian natural products research
Paging:
Volume 7 (2005) nr. 2 pages 127-130
Year:
2005-04
Contents:
Two new alkaloids named polygonatine A (1) and polygonatine B (2) have been isolated from the rhizome of Polygonatum sibiricum Redoute (Liliaceae). By spectral data (IR, UV, MS, 1D and 2D NMR) and chemical evidence, their structures were elucidated as 3-hydroxymethyl-5,6,7,8-tetrahydroindolizin-8-one (1) and 3-ethoxymethyl-5,6,7,8-tetrahydroindolizin-8-one (2).