3-ethyl-1-iodo-8-(3-trifluoromethylphenoxymethyl)-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester 、
methanol-dichloromethane 在
1-chloro-3-ethyl-8-(3-trifluoromethylphenoxymethyl)-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-ethyl-8-(3-trifluoromethyl-phenoxymethyl)-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester as a yellow oil (0.403 g; 38%)的产率得到1-chloro-3-ethyl-8-(3-trifluoromethylphenoxymethyl)-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester