摘要
One new Daphniphyllum alkaloid,daphnioldhanol A(1),together with three known ones,were isolated from the stem part of Daphniphyllum angustifolium Hutch.Their structures were elucidated by spectroscopic methods and comparing with the literature data.Compound 2 is a new natural product,but known by synthesis as a racemate.Compound 1 exhibited week cytotoxic activity against Hela cell line with IC50 of 31.9μM.
基金
the National Natural Science Foundation of China(No.31770392 to YTD)
the Science and Technology Program of Yunnan Province(2018ZF013 to YTD)
The authors are grateful to the analytical group of the Laboratory of Phytochemistry,Kunming Institute of Botany,Chinese Academy of Sciences,for recorded spectra.
