Discovery of nor-bicyclic polyprenylated acylphloroglucinols possessing diverse architectures with anti-hepatoma activities from Hypericum patulum

Yulin Duan, Yanfang Deng, Pengfei Bu, Shuangshuang Xie, Yi Guo, Zhengyi Shi, Yun Guo, Yunfang Cao, Changxing Qi, Yonghui Zhang