1,3-dichloro-8-[2-(4-trifluoromethylphenyl)ethyl]-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester 在
Boc-deprotection 、
1,3-dichloro-8-[2-(4-trifluoromethylphenyl)ethyl]-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine 作用下,
以
methanol-dichloromethane 为溶剂,
以gave the expected product 1,3-dichloro-8-[2-(4-trifluoromethyl-phenyl)-ethyl]-5,6,7,8-tetrahydro-imidazo[1,5-a]pyrazine as a yellow oil (121 mg; 0.332 mmol; 83%)的产率得到1,3-dichloro-8-[2-(4-trifluoromethylphenyl)ethyl]-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine