1-(3-Fluoro-4-trifluoromethyl-phenyl)-4,4,4-trifluoro-butane-1,3-dione → 5-(3-Fluoro-4-trifluoromethyl-phenyl)-3-pyridin-4-yl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine
Reaction equation
[F:1][C:2]1[CH:3]=[C:4]([C:12](=O)[CH2:13][C:14](=O)[C:15]([F:18])([F:17])[F:16])[CH:5]=[CH:6][C:7]=1[C:8]([F:11])([F:10])[F:9].[NH2:21][C:22]1[C:26]([C:27]2[CH:32]=[CH:31][N:30]=[CH:29][CH:28]=2)=[CH:25][NH:24][N:23]=1>>[F:1][C:2]1[CH:3]=[C:4]([C:12]2[CH:13]=[C:14]([C:15]([F:18])([F:17])[F:16])[N:23]3[N:24]=[CH:25][C:26]([C:27]4[CH:32]=[CH:31][N:30]=[CH:29][CH:28]=4)=[C:22]3[N:21]=2)[CH:5]=[CH:6][C:7]=1[C:8]([F:11])([F:10])[F:9]Participants
3
Procedure
Reaction of 1-(3-fluoro-4-trifluoromethyl-phenyl)-4,4,4-trifluoro-butane-1,3-dione (151 mg, 0.5 mmol), prepared from commercially available 3-fluoro-4-trifluoromethyl-acetophenone according to general procedure A, and 3-amino-4-(4-pyridinyl)-pyrazole [CAS No. 216661-87-9; prepared from 4-cyanomethyl-pyridine as described in Bioorg. Med. Chem. Lett. 12 (2002) 3537-3541] (80 mg, 0.5 mmol) according to general procedure B yielded the title compound as a yellow solid (92 mg, 43%). MS (ISP) 427.0 [(M+H)+]; mp 262° C.
Sources & evidence
- ORD record
- ord-a846c7f57640414891cfdf5c99534112
- Source dataset
- uspto-grants-2008_02
- Patent number
- US07329662B2
Reaction notes
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