2-Pyridinecarboxaldehyde → HCID 46682363, compound

HRID 1674806Notes

Reaction equation

HRID 1674806 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)[N:12]=2)[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.[N:20]1[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=1[CH:26]=O>>[N:20]1[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=1[CH2:26][N:4]1[CH2:3][CH2:2][N:1]([C:7]2[CH:8]=[CH:9][C:10]3[N:11]([C:13]([C:16]([F:17])([F:18])[F:19])=[N:14][N:15]=3)[N:12]=2)[CH2:6][CH2:5]1

Participants

3

Reactant 2

HCID 142732-PyridinecarboxaldehydeHCID 14768626-Piperazino-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine

Product 1

HCID 46682363HCID 46682363, compound

Procedure

Reductive amination of 6-(piperazin-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine with pyridine-2-carbaldehyde was carried out according to General Synthetic Method 5. The crude product was purified by hplc using a Waters XBridge Prep C18 OBD column, 5μ silica, 19 mm diameter, 100 mm length eluted with decreasingly polar mixtures of water (containing 1% aqueous ammonia) and acetonitrile as eluents to give 6-[4-(pyridin-2-ylmethyl)piperazin-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine.

Workup

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

Sources & evidence

ORD record
ord-270b91a1b2994f8ea2eef31563e81cef
Source dataset
uspto-grants-2011_08
Patent number
US08003649B2

Reaction notes

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