Three new secoiridoids, swermacrolactones A-C (1-3), together with fourteen known compounds were isolated from Swertia macrosperma. Their structures were elucidated based on extensive spectroscopic analyses (IR, UV, MS, 1D and 2D NMR). By anti-HBV assay on the Hep G 2.2.15 cell line in vitro, the most active compound, luteolin (9), inhibited the secretion of hepatitis B virus surface antigen (HBsAg) and hepatitis B virus e antigen (HBeAg) with IC50 values of 0.02 and 0.02 mM, respectively. (c) 2013 Elsevier B.V. All rights reserved.
1.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources West Ch, Kunming 650201, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation:
Wang, Hong-Ling; Geng, Chang-An; Ma, Yun-Bao; Zhang, Xue-Mei; Chen, Ji-Jun.Three new secoiridoids, swermacrolactones A-C and anti-hepatitis B virus activity from Swertia macrosperma,FITOTERAPIA,2013,89():183-187
