反应详情

The title compound was prepared from 7-difluoromethyl-5-(3-methyl-4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.5) (186 mg, 0.5 mmol) and 6-amino-N-hydroxy-nicotinamidine (example B.4) (114 mg, 0.75 mmol) according to general procedure II. Obtained after flash chromatography on silica gel (ethyl acetate/heptane) and further purification by crystallization (dichloromethane/hexane) as a yellow solid (113 mg, 46%). MS (ISP) 488.1 [(M+H)+]; mp 231° C.

1. customObtained after flash chromatography
2. customon silica gel (ethyl acetate/heptane) and further purification
3. customby crystallization (dichloromethane/hexane) as a yellow solid (113 mg, 46%)