1: With sodium tris(acetoxy)borohydride in tetrahydrofuran T=20°C; 1 h; 2: With acetic acid in tetrahydrofuran 3: With sodium hydrogencarbonate in tetrahydrofuran; water; ethyl acetate
参考文献
AMGEN INC.
Patent: WO2007/67629 A1, 2007 ;
Location in patent: Page/Page column 65 ;
WO 2007/067629 A1