5-Ethynylpyridin-2-amine → 5-[7-Trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyridin-3-ylethynyl]-pyridin-2-ylamine
Reaction equation
I[C:2]1[CH:3]=[N:4][N:5]2[C:10]([C:11]([F:14])([F:13])[F:12])=[CH:9][C:8]([C:15]3[CH:20]=[CH:19][C:18]([C:21]([F:24])([F:23])[F:22])=[CH:17][CH:16]=3)=[CH:7][C:6]=12.[C:25]([C:27]1[CH:28]=[CH:29][C:30]([NH2:33])=[N:31][CH:32]=1)#[CH:26]>>[F:14][C:11]([F:12])([F:13])[C:10]1[N:5]2[N:4]=[CH:3][C:2]([C:26]#[C:25][C:27]3[CH:28]=[CH:29][C:30]([NH2:33])=[N:31][CH:32]=3)=[C:6]2[CH:7]=[C:8]([C:15]2[CH:16]=[CH:17][C:18]([C:21]([F:22])([F:23])[F:24])=[CH:19][CH:20]=2)[CH:9]=1Participants
3
Procedure
The title compound was prepared from 3-iodo-7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyridine (example C.22 step 9) (300 mg, 0.7 mmol) and 5-ethynyl-pyridin-2-ylamine (example D.1) (93 mg, 0.8 mmol) according to general procedure II. Obtained as a yellow solid (230 mg, 78%). MS (ISP) 447.2 [(M+H)+]; mp 243–245° C.
Sources & evidence
- ORD record