参考文献

BOEHRINGER INGELHEIM INTERNATIONAL GMBH; GINN, John David; MARSHALL, Daniel Richard; SIBLEY, Robert; SORCEK, Ronald John; YOUNG, Erick Richard Roush; ZHANG, Yunlong Patent: WO2012/6202 A1, 2012 ; Location in patent: Page/Page column 85-86 ; WO 2012/006202 A1