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

HRID 1674972ノート

反応式

HRID 1674972 の反応式
[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.[C:20]([O:24][C:25](=[O:35])[NH:26][C:27]1[CH:32]=[CH:31][C:30]([CH:33]=O)=[CH:29][CH:28]=1)([CH3:23])([CH3:22])[CH3:21]>C(O)(=O)C.ClCCl>[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]([CH2:33][C:30]4[CH:29]=[CH:28][C:27]([NH:26][C:25](=[O:35])[O:24][C:20]([CH3:22])([CH3:21])[CH3:23])=[CH:32][CH:31]=4)[CH2:5][CH2:6]3)[CH:8]=[CH:9][C:10]2=[N:15][N:14]=1

参加物

5

反応物 2

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

生成物 1

HCID 67339893HCID 67339893、化合物収率 52.1%

試薬・触媒・溶媒 2

HCID 176Acetic Acid溶媒HCID 6344Dichloromethane溶媒

実験手順

A solution of 6-(piperazin-1-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazine (0.079 g, 0.29 mmol) in a mixture of acetic acid and dichloromethane (1:9; 3 mL) was added to a mixture of (polystyrylmethyl)trimethylammonium cyanoborohydride (4.1 mmol/g, 0.097 g, 0.4 mmol) and N-(4-formylphenyl)carbamic acid tert-butyl ester (0.088.4 g, 0.4 mmol). The reaction mixture was shaken for 4 days and then filtered. The filtrate was evaporated and the and the involatile residue was purified by hplc using a Waters XBridge Prep C18 OBD column (5μ silica, 21 mm diameter, 100 mm length) eluted with decreasingly polar mixtures of water (containing 0.05% aqueous ammonia) and acetonitrile as eluents to give tert-butyl 4-((4-(3-(trifluoromethyl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)piperazin-1-yl)methyl)phenylcarbamate (0.0722 g, 52%) as a white solid, which was used without further purification.

後処理

  1. filtrationfiltered
  2. customThe filtrate was evaporated
  3. customthe and the involatile residue was purified by hplc
  4. washeluted with decreasingly polar mixtures of water (containing 0.05% aqueous ammonia) and acetonitrile as eluents

出典と根拠

ORDレコード
ord-01f5edeb81124dbfb88d2d21785dcee1
出典データセット
uspto-grants-2011_08
特許番号
US08003649B2

反応ノート

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