BRISTOL-MYERS SQUIBB COMPANY; CIANCI, Christopher, W.; GERRITZ, Samuel; LI, Guo; PEARCE, Bradley, C.; PENDRI, Annapurna; SHI, Shuhao; ZHAI, Weixu; ZHU, Shirong Patent: WO2012/33736 A1, 2012 ; Location in patent: Page/Page column 63 ;