4-Chloro-3-(pyridin-2-yl)aniline → HCID 58614949, compound
Reaction equation
[Cl:1][C:2]1[CH:8]=[CH:7][C:5]([NH2:6])=[CH:4][C:3]=1[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][N:10]=1.[N:15]1([CH2:20][CH2:21][S:22]([C:25]2[CH:33]=[CH:32][C:28]([C:29](O)=[O:30])=[CH:27][CH:26]=2)(=[O:24])=[O:23])[CH:19]=[CH:18][N:17]=[CH:16]1>>[N:15]1([CH2:20][CH2:21][S:22]([C:25]2[CH:33]=[CH:32][C:28]([C:29]([NH:6][C:5]3[CH:7]=[CH:8][C:2]([Cl:1])=[C:3]([C:9]4[CH:14]=[CH:13][CH:12]=[CH:11][N:10]=4)[CH:4]=3)=[O:30])=[CH:27][CH:26]=2)(=[O:23])=[O:24])[CH:19]=[CH:18][N:17]=[CH:16]1Participants
Procedure
4 g of 4-(2-hydroxyethylthio)benzonitrile was reacted via Procedure R to yield 4-(2-hydroxyethylsulfonyl)benzonitrile. 3.0 g of triphenylphosphine was added to a solution of 2 g of 4-(2-hydroxyethylsulfonyl)benzonitrile and 4.7 g of carbon tetrabromide in dichloromethane at 0° C. The reaction mixture was allowed to warm to room temperature and stirred for 1 h. The mixture was diluted with dichloromethane, washed with H2O, dried (MgSO4) and evaporated. Purified by silica gel chromatography (0-70% ethyl acetate/hexane) to afford 4-(2-bromoethylsulfonyl)benzonitrile. 250 mg of 4-(2-bromoethylsulfonyl)benzonitrile was used in Procedure P with imidazole to give 4-(2-(1H-imidazol-1-yl)ethylsulfonyl)benzonitrile. 300 mg of 4-(2-(1H-imidazol-1-yl)ethylsulfonyl)benzonitrile was reacted via Procedure T to give 4-(2-(1H-imidazol-1-yl)ethylsulfonyl)benzoic acid. 60 mg of 4-chloro-3-(pyridin-2-yl)aniline was coupled to 4-(2-(1H-imidazol-1-yl)ethylsulfonyl)benzoic acid via Procedure G. The product was purified on reverse phase HPLC to yield 4-(2-(1H-imidazol-1-yl)ethylsulfonyl)-N-(4-chloro-3-(pyridin-2-yl)phenyl)benzamide. MS (Q1) 467.1 (M)+.
Workup
- customThe product was purified on reverse phase HPLC
Sources & evidence
- ORD record
- ord-3d3f53ca9e374bf7a3785ed96a1c5fd7
- Source dataset
- uspto-grants-2011_02
- Patent number
- US07888364B2
Reaction notes
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