反应条件
1: 1.) acetic anhydride / 1.) 140-150 deg C, 2 h; 2.) EtOH, iso-Pr2O, r.t., 3 h 2: 32 percent / potassium tert-butoxide / tetrahydrofuran / 3 h / Ambient temperature 3: 1.) 60percent sodium hydride; 2.) 0.1 N NaOH / 1.) dioxane, mineral oil, 80-85 deg C, 1 h; 2.) 100 deg C, 30 min View Scheme
参考文献
Chemical and Pharmaceutical Bulletin, , vol. 34, # 10 p. 4098 - 4102
