反应条件
1: DMAP, pyridine / CH2Cl2 / 4 h / Ambient temperature 2: (COCl)2, DMF / CH2Cl2 / 1.5 h / 0 - 20 °C 3: 1.) pyridine, 2.) citric acid / 1.) CH2Cl2, Rt, 2 h, 2.) CH2Cl2, MeOH, RT, 0.6 h View Scheme
参考文献
Wanner, Klaus Th.; Weber, Ulrich
Journal of Heterocyclic Chemistry, 1997 , vol. 34, # 2 p. 681 - 683
