反应条件
1: N-ethyl-N,N-diisopropylamine; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate / dichloromethane; N,N-dimethyl-formamide / 2 h 2: acetic anhydride; acetic acid; hydrogenchloride / 48 h / 0 - 4 °C 3: N,N-dimethyl-formamide / 15 h / |Inert atmosphere View Scheme
参考文献
Zamora, Cristina Y.; D'Alarcao, Marc; Kumar, Krishna
Bioorganic and Medicinal Chemistry Letters, 2013 , vol. 23, # 11 p. 3406 - 3410