1-iodo-3-methylsulfanyl-8-[2-(4-trifluoromethyl-phenyl)-ethyl]-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester 以
methanol-dichloromethane 为溶剂,
反应 5.0h,
以afforded 3-methylsulfanyl-1-trifluoromethyl-8-[2-(4-trifluoromethyl-phenyl)-ethyl]-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester as a pale yellow solid (3.650 g; 54%)的产率得到3-methylsulfanyl-1-trifluoromethyl-8-[2-(4-trifluoromethyl-phenyl)-ethyl]-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester