反应条件
1: sodium cyanoborohydride; alpha-hydroxyethanoic acid / methanol / 20 °C / |Inert atmosphere; |Large scale 2: ammonia / methanol / 22 h / 70 °C / 4897.34 Torr / |Sealed tube; |Large scale 3: hydrogenchloride / isopropyl alcohol / 4 h / 50 °C / |Large scale 4: benzotriazol-1-ol; 4-methyl-morpholine; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / water; ethyl acetate; 1-methyl-pyrrolidin-2-one / 16 h / 20 - 24 °C 5: acetic acid; 2,2,6,6-tetramethyl-1-piperidinyloxy, free radical; NaMnO4 / tert-butyl methyl ether; water / 12 °C View Scheme
参考文献
MERCK SHARP and DOHME CORP.; WU, George, G.; ITOH, Tetsuji; MCLAUGHLIN, Mark; LIU, Zhijian; QIAN, Gang
Patent: WO2013/66734 A1, 2013 ;