Multi-step reaction with 2 steps 1: H2SO4 2: pyridine
参考文献
Meyer, Michael D.; Hancock, Arthur A.; Tietje, Karin; Sippy, Kevin B.; Prasad, Rajnandan; Stout, David M.; Arendsen, David L.; Donner, B. Greg; Carroll, William A. Journal of Medicinal Chemistry, 1997 , vol. 40, # 7 p. 1049 - 1062