GLAXO GROUP LIMITED; WAN, Zehong; ZHANG, Xiaomin; TONG, Zhaolong; LONG, Kai; DOWDELL, Sarah E.; MANAS, Eric Steven; GOODMAN, Krista Beaver Patent: WO2012/37782 A1, 2012 ; Location in patent: Page/Page column 19-20 ; WO 2012/037782 A1