反应条件
1: 83 percent / propionic acid / 10 h / -20 °C 2: 1.) triethylamine; 2.) K2CO3 / 1.) pyridine, 4 deg C, 10 h; 2.) DMF, H2O, 100 deg C, 14 h View Scheme
参考文献
Wardani, Abderrahim; Lhomme, Jean
Tetrahedron Letters, 1993 , vol. 34, # 40 p. 6411 - 6414