反应条件
1: 75 percent / NaHCO3 / ethyl acetate; H2O / 0.5 h / 0 °C
2: 95 percent / K2CO3 / dimethylformamide / 1 h / Ambient temperature
3: 1) NaH / 1) DMF, 10 min, r.t., 2) DMF, 30 min, cooling
4: 100 percent / P2S5 / toluene / 2 h / Heating
5: 67 percent / 2 N NaOH / dioxane; methanol / 0.5 h
View Scheme
参考文献
Tawada; Sugiyama; Ikeda; Yamamoto; Meguro
Chemical and Pharmaceutical Bulletin, 1990 , vol. 38, # 5 p. 1238 - 1245