1-(3-Chloro-4-fluorophenyl)-4,4,4-trifluorobutane-1,3-dione → 5-(3-Chloro-4-fluoro-phenyl)-3-pyridin-2-yl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine

Beteiligte Stoffe

Reaktionsschritte

Reaction of 1-(3-chloro-4-fluoro-phenyl)-4,4,4-trifluoro-butane-1,3-dione (269 mg, 1.0 mmol), prepared from commercially available 3-chloro-4-fluoro-acetophenone according to general procedure A, and 3-amino-4-(2-pyridinyl)-pyrazole [CAS No. 493038-87-2; prepared from 2-cyanomethyl-pyridine as described in Bioorg. Med. Chem. Lett. 12 (2002) 3537-3541] (160 mg, 1.0 mmol) according to general procedure B yielded the title compound as a yellow solid (279 mg, 71%). MS (ISP) 393.1 [(M+H)+]; mp 197° C.

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