tert-butyl 5-cyano-2,4-dimethyl-4-spiro-3'-(6'-fluoro-2',3'-dihydro-1'-benzothiophene 1'-oxide)-1,4-dihydropyridine-3-carboxylate 在
Raney Ni 作用下,
以
乙醇 为溶剂,
反应 0.5h,
以60%的产率得到tert-butyl 5-cyano-4-(4-fluorophenyl)-2,4,6-trimethyl-1,4-dihydropyridine-3-carboxylate