反应条件
1: 1.) NaBr, 2.) Et3N / 1.) DMF, RT, 0.5 h, 2.) DMF, from 60 deg C to 70 deg C, 5 h 2: 95 percent / acetic anhydride / dioxane / 72 h / Ambient temperature View Scheme
参考文献
Bakos; Vincze
Synthetic Communications, 1992 , vol. 22, # 10 p. 1377 - 1383
