Multi-step reaction with 5 steps 1: 79 percent / tetrahydrofuran / Ambient temperature2: H2SO4 / methanol / 4 h / Heating3: 4.5 N HCl / Heating4: H+ 5: LiBH4
参考文献
VanAtten, Mary K.; Ensinger, Carol L.; Chiu, Andrew T.; McCall, Dale E.; Nguyen, Tam T.; et al. Journal of Medicinal Chemistry, 1993 , vol. 36, # 25 p. 3985 - 3992