1: With acetic acid in tetrahydrofuran T=0°C; 0.25 h; 2: With sodium tris(acetoxy)borohydride in tetrahydrofuran T=20 - 40°C; 2.75 h; 3: With ammonia in water pH=9; 0.5 h;
参考文献
PFIZER LIMITED
Patent: WO2007/52124 A1, 2007 ;
Location in patent: Page/Page column 17 ;
WO 2007/052124 A1