反应条件
1: 68 percent / pyridine / 18 h 2: 54 percent / sat. NaHCO3 / ethanol; H2O / 41 °C 3: 1.) NaH, 2.) NOCl / 1.) DMF, 0.5 h, 2.) DMF, 0 deg C 4: 69 percent / POCl3 / 3 h / Heating View Scheme
参考文献
Journal of Organic Chemistry, , vol. 48, # 24 p. 4605 - 4611