反应条件
1: 27 percent / Na2S*9H2O / H2O; ethanol / 22 h / Heating 2: 1.) conc. H2SO4, water / 1.) 150 deg C (internal temp.) 2.) reflux, 3.5 h View Scheme
参考文献
Hardy; Doyle; Smith
European Journal of Medicinal Chemistry, 1987 , vol. 22, # 4 p. 331 - 335