6-Piperazino-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazine → HCID 67339893, compound

HRID 1674910Notes

Reaction equation

HRID 1674910 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.[CH:20]([C:22]1[CH:27]=[CH:26][C:25]([NH:28][C:29](=[O:35])[O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[CH:24][CH:23]=1)=O>>[F:19][C:16]([F:17])([F:18])[C:13]1[N:11]2[N:12]=[C:7]([N:1]3[CH2:2][CH2:3][N:4]([CH2:20][C:22]4[CH:23]=[CH:24][C:25]([NH:28][C:29](=[O:35])[O:30][C:31]([CH3:33])([CH3:32])[CH3:34])=[CH:26][CH:27]=4)[CH2:5][CH2:6]3)[CH:8]=[CH:9][C:10]2=[N:15][N:14]=1

Participants

3

Reactant 2

HCID 14768626-Piperazino-3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazineHCID 2771821tert-Butyl (4-formylphenyl)carbamate

Product 1

HCID 67339893HCID 67339893, compound

Procedure

Reductive amination of 6-(piperazin-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine with tert-butyl N-(4-formylphenyl)carbamate was carried out according to General Synthetic Method 7. 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 tert-butyl N-[4-[[4-[3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperazin-1-yl]methyl]phenyl]carbamate.

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-c02e13823f6d42669d107856bdc9bb6f
Source dataset
uspto-grants-2011_08
Patent number
US08003649B2

Reaction notes

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