4-Cyanobenzaldehyde → 4-[[4-[3-(Trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridin-6-yl]piperazin-1-yl]methyl]benzonitrile

HRID 1674949Notes

Reaction equation

HRID 1674949 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.[CH:20]([C:22]1[CH:29]=[CH:28][C:25]([C:26]#[N:27])=[CH:24][CH:23]=1)=O>>[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]([CH2:20][C:22]4[CH:29]=[CH:28][C:25]([C:26]#[N:27])=[CH:24][CH:23]=4)[CH2:5][CH2:6]3)[CH:8]=[CH:9][C:10]2=[N:15][N:14]=1

Participants

3

Reactant 2

HCID 660424-CyanobenzaldehydeHCID 673412226-(Piperazin-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine

Product 1

HCID 673409754-[[4-[3-(Trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridin-6-yl]piperazin-1-yl]methyl]benzonitrile

Procedure

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

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-1efd21bb22504fe8a05528bbe0cc73a8
Source dataset
uspto-grants-2011_08
Patent number
US08003649B2

Reaction notes

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