3-Fluorobenzaldehyde → 6-[4-[(3-Fluorophenyl)methyl]piperazin-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine
Reaction equation
[N:1]1([C:7]2[CH:8]=[CH:9][C:10]3[N:11]([C:13]([C:16]([F:19])([F:18])[F:17])=[N:14][N:15]=3)[CH:12]=2)[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.[F:20][C:21]1[CH:22]=[C:23]([CH:26]=[CH:27][CH:28]=1)[CH:24]=O>>[F:20][C:21]1[CH:22]=[C:23]([CH2:24][N:4]2[CH2:3][CH2:2][N:1]([C:7]3[CH:8]=[CH:9][C:10]4[N:11]([C:13]([C:16]([F:18])([F:17])[F:19])=[N:14][N:15]=4)[CH:12]=3)[CH2:6][CH2:5]2)[CH:26]=[CH:27][CH:28]=1Participants
3
Procedure
Reductive amination of 6-(piperazin-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine with 3-fluorobenzaldehyde was carried out according to General Synthetic Method 9. The crude product was purified by hplc using a Waters XBridge Prep C18 OBD column, 5μ silica, 30 mm diameter, 100 mm length eluted with decreasingly polar mixtures of water (containing 0.1% aqueous ammonia) and acetonitrile as eluents to give 6-[4-[(3-fluorophenyl)methyl]piperazin-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine.