反应详情

The title compound was prepared from 5-(4-chloro-phenyl)-7-difluoromethyl-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (example C.3) (162 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 (114 mg, 52%). MS (ISP) 440.2 [(M+H)+]; mp 254° 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 (114 mg, 52%)