MERCK SHARP and DOHME CORP.; BELYK, Kevin, M.; BULGER, Paul, G.; LINGHU, Xin; MALONEY, Kevin, M.; MCLAUGHLIN, Mark; PAN, Jun; XIANG, Bangping; XU, Yingju; YIN, Jingjun Patent: WO2011/5731 A2, 2011 ; WO 2011/005731 A2