3-ethyl-8-(4-fluoro-3-trifluoromethylphenoxymethyl)-1-iodo-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester 、
methanol-dichloromethane 在
1-chloro-3-ethyl-8-(4-fluoro-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-(4-fluoro-3-trifluoromethyl-phenoxymethyl)-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester as an orange solid (186 mg; 26%)的产率得到1-chloro-3-ethyl-8-(4-fluoro-3-trifluoromethylphenoxymethyl)-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester