7-[(tert-Butoxy)carbonyl]-3-(trifluoromethyl)-5H,6H,7H,8H-imidazo[1,5-a]pyrazine-1-carboxylic acid 、
methoxymethylamine 、
三乙胺 、
双(2-氧代-3-恶唑烷基)次磷酰氯 在
silica gel 、
1-(methoxy-methyl-carbamoyl)-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以to obtain the title compound 1-(methoxy-methyl-carbamoyl)-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester 27e (2.1 g) as a white solid的产率得到1-(methoxy-methyl-carbamoyl)-3-trifluoromethyl-5,6-dihydro-8H-imidazo[1,5-a]pyrazine-7-carboxylic acid tert-butyl ester