反应条件
1: 85 percent / pyridine 2: 90 percent / HCO2H / H2O / 0.12 h 3: 88 percent / TFAA, Et3N / dimethylsulfoxide / -78 °C 4: 95 percent / K2CO3 / ethanol 5: H2SO4 6: pyridine 7: H2SO4 / acetic acid View Scheme
参考文献
Jung, Michael E.; Xu, Yue
Tetrahedron Letters, 1997 , vol. 38, # 24 p. 4199 - 4202
