SHANGHAI FOCHON PHARMACEUTICAL CO LTD; WANG, Weibo; ZHAO, Xingdong; LEI, Ming; ZHANG, Huajie; WANG, Longcheng; ZHANG, Jian; FANG, Bo; LIU, Xia; ZHOU, Zuwen Patent: WO2012/88680 A1, 2012 ; Location in patent: Page/Page column 43 ; WO 2012/088680 A1