Glucosyloxybenzyl 2-isobutylmalates and phenolic glycosides from the flowers of Bletilla striata
Fang, Yi-Ke 1Shang, Zhi-Mei 1Sun, Guo-Qing 1Zhang, Mao-Sheng 1Wang, Gang 1Xu, De-Lin 1Zhou, Yan 2Sun, Cheng-Xin 1Xiao, Shi-Ji1
扫码查看
点击上方二维码区域，可以放大扫码查看
作者信息
1. Zunyi Med Univ
2. Chinese Acad Sci
折叠
Abstract
Four previously undescribed compounds, including three glucosyloxybenzyl 2-isobutylmalates (1-3), one phenolic glycoside (4), along with ten known compounds were isolated from the flowers of Bletilla striata. The structures and absolute configurations of the undescribed compounds were elucidated on the basis of HR-ESIMS, NMR spectroscopy, optical rotation value, and acid hydrolysis experiment. Cytotoxicity of the isolated compounds against A549, HCT-116, and SW1990 cells and protective effects of t-BHP-induced L02 cytotoxic were assayed. The antioxidant activities of the isolated compounds were also evaluated.
NSTL
Elsevier