BOEHRINGER INGELHEIM INTERNATIONAL GMBH; BOEHRINGER INGELHEIM INTERNATIONAL TRADING (SHANGHAI) CO., LTD.; SHI, Wenjian; SONG, Yanli; BAO, Yuhui; LU, Jun; HUANG, Yao; WEBER, Dirk Patent: WO2014/37307 A1, 2014 ; Location in patent: Page/Page column 10 ;