1-iodo-3-methoxymethyl-8-[2-(4-trifluoromethylphenyl)ethyl]-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester 、
methanol-dichloromethane 在
1-chloro-3-methoxymethyl-8-[2-(4-trifluoromethylphenyl)ethyl]-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester 作用下,
以gave the expected product 1-chloro-3-methoxymethyl-8-[2-(4-trifluoromethyl-phenyl)-ethyl]-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester as an orange oil (254 mg; 42%)的产率得到1-chloro-3-methoxymethyl-8-[2-(4-trifluoromethylphenyl)ethyl]-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester