参考文献

BOEHRINGER INGELHEIM INTERNATIONAL GMBH; KLEY, Joerg; HAMILTON, Bradford, S.; MACK, Juergen; REDEMANN, Norbert; SCHOELCH, Corinna Patent: WO2011/48018 A1, 2011 ; Location in patent: Page/Page column 38 ; WO 2011/048018 A1