参考文献

HUTCHISON MEDIPHARMA LIMITED; ZHANG, Weihan; SU, Wei-Guo; YANG, Haibin; CUI, Yumin; REN, Yongxin; YAN, Xiaoqiang Patent: WO2012/356 A1, 2012 ; Location in patent: Page/Page column 12 ; WO 2012/000356 A1