o-Fluorobenzaldehyde → 6-[4-[(2-Fluorophenyl)methyl]-1,4-diazepan-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine

HRID 1674931Notes

Reaction equation

HRID 1674931 reaction equation
[N:1]1([C:8]2[CH:9]=[CH:10][C:11]3[N:12]([C:14]([C:17]([F:20])([F:19])[F:18])=[N:15][N:16]=3)[N:13]=2)[CH2:7][CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.[F:21][C:22]1[CH:29]=[CH:28][CH:27]=[CH:26][C:23]=1[CH:24]=O>>[F:21][C:22]1[CH:29]=[CH:28][CH:27]=[CH:26][C:23]=1[CH2:24][N:4]1[CH2:5][CH2:6][CH2:7][N:1]([C:8]2[CH:9]=[CH:10][C:11]3[N:12]([C:14]([C:17]([F:18])([F:19])[F:20])=[N:15][N:16]=3)[N:13]=2)[CH2:2][CH2:3]1

Participants

3

Reactant 2

HCID 67970o-FluorobenzaldehydeHCID 673406096-(1,4-Diazepan-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine

Product 1

HCID 673407326-[4-[(2-Fluorophenyl)methyl]-1,4-diazepan-1-yl]-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine

Procedure

Reductive amination of 6-(1,4-diazepan-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine with 2-fluorobenzaldehyde was carried out according to General Synthetic Method 8. 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 0.05% aqueous ammonia) and acetonitrile as eluents to give 6-[4-[(2-fluorophenyl)methyl]-1,4-diazepan-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 0.05% aqueous ammonia) and acetonitrile as eluents

Sources & evidence

ORD record
ord-cc00c2f82ef044cc9274a3e8bb535cdf
Source dataset
uspto-grants-2011_08
Patent number
US08003649B2

Reaction notes

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