Figure 1. Chemical structures of Forsythiaside A, forsythiaside B, and phillyrin extracted from F. suspensa

From

Protective Effects of Forsythiaside A, Forsythiaside B, and Phillyrin against UVA-Induced Cell Damage

Fu-Jun Jin, Hong-Wei Zhao, Xiao Yuan, Zhi-Yun Wu, Qiao-Li Wang, Chung-Wah Ma, Zhe Ren, Yi-Fei Wang

Journal of Food and Nutrition Research. 2014, 2(9), 587-593 doi:10.12691/jfnr-2-9-10