4-(Trifluoromethyl)benzaldehyde → 3-(Trifluoromethyl)-6-[4-[[4-(trifluoromethyl)phenyl]methyl]piperazin-1-yl]-[1,2,4]triazolo[4,3-a]pyridine

HRID 1674948Notes

Reaction equation

HRID 1674948 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]([F:31])([F:30])[C:22]1[CH:29]=[CH:28][C:25]([CH:26]=O)=[CH:24][CH:23]=1>>[F:19][C:16]([F:18])([F:17])[C:13]1[N:11]2[CH:12]=[C:7]([N:1]3[CH2:2][CH2:3][N:4]([CH2:26][C:25]4[CH:24]=[CH:23][C:22]([C:21]([F:20])([F:30])[F:31])=[CH:29][CH:28]=4)[CH2:5][CH2:6]3)[CH:8]=[CH:9][C:10]2=[N:15][N:14]=1

Participants

3

Reactant 2

HCID 679964-(Trifluoromethyl)benzaldehydeHCID 673412226-(Piperazin-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine

Product 1

HCID 866380703-(Trifluoromethyl)-6-[4-[[4-(trifluoromethyl)phenyl]methyl]piperazin-1-yl]-[1,2,4]triazolo[4,3-a]pyridine

Procedure

Reductive amination of 6-(piperazin-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine with 4-(trifluoromethyl)benzaldehyde 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 3-(trifluoromethyl)-6-[4-[[4-(trifluoromethyl)phenyl]methyl]piperazin-1-yl]-[1,2,4]triazolo[4,3-a]pyridine.

Workup

  1. customThe crude product was purified by hplc
  2. washeluted with decreasingly polar mixtures of water (containing 0.1% aqueous ammonia) and acetonitrile as eluents

Sources & evidence

ORD record
ord-9d694652188e498899dfbc969c44e49a
Source dataset
uspto-grants-2011_08
Patent number
US08003649B2

Reaction notes

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