反应条件
1: toluene-p-sulfonic acid / 1 h / Ambient temperature 2: 1.) n-butyllithium / 1.) hexane, THF, -78 deg C, 30 min, 2.) hexane, THF, RT, 10 h 3: conc. aq. HCl / methanol / 0.5 h / 60 - 70 °C View Scheme
参考文献
Journal of Medicinal Chemistry, , vol. 28, # 10 p. 1491 - 1497