反应条件
1: DMAP / acetonitrile / 2 h / Ambient temperature
2: 72 percent / AIBN, Bu3SnH / toluene / 6 h / 80 °C
3: HCOOH / 2 h / 50 °C
4: pyridine / 2 h / Ambient temperature
5: 1.) hexamethyldisilazane, (NH4)2SO4, 2.) trimethylsilyl triflate / 1.) reflux, 1,2-dichloroethane, RT, 1.5 h
6: 72 percent / NaOEt / 24 h / Ambient temperature
View Scheme
参考文献
Rhie; Pfleiderer
Nucleosides and Nucleotides, 1994 , vol. 13, # 6-7 p. 1425 - 1452