3-Methanesulfonyl-5-(trifluoromethyl)benzoic acid → N-[4-(2-Chloro-phenyl)-pyridin-3-yl]-3-methanesulfonyl-N-(2,2,2-trifluoro-ethyl)-5-trifluoromethyl-benzamide
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[CH:13]=[CH:12][N:11]=[CH:10][C:9]=1[NH:14][CH2:15][C:16]([F:19])([F:18])[F:17].[CH3:20][S:21]([C:24]1[CH:25]=[C:26]([CH:30]=[C:31]([C:33]([F:36])([F:35])[F:34])[CH:32]=1)[C:27](O)=[O:28])(=[O:23])=[O:22]>>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[CH:13]=[CH:12][N:11]=[CH:10][C:9]=1[N:14]([CH2:15][C:16]([F:19])([F:17])[F:18])[C:27](=[O:28])[C:26]1[CH:30]=[C:31]([C:33]([F:36])([F:34])[F:35])[CH:32]=[C:24]([S:21]([CH3:20])(=[O:23])=[O:22])[CH:25]=1Participants
3
Procedure
The title compound was prepared in analogy to example 90, from 4-(2-chlorophenyl)-N-(2,2,2-trifluoroethyl)pyridin-3-amine and 3-(methylsulfonyl)-5-(trifluoromethyl)benzoic acid (example 114, intermediate a) after a reaction time of 18 hours at room temperature. The compound was purified by silica gel chromatography on a 20 g column using an MPLC (Flashmaster) system eluting with a gradient of n-heptane:EtOAc (100:0 to 0:100). Further purification by preparative HPLC (Gemini NX) with a gradient of MeOH:water (containing 0.05% formic acid) (80:20 to 98:2). Colorless solid (31%). MS (ESI): m/z=537.045 [M+H]+.
Workup
- customThe compound was purified by silica gel chromatography on a 20 g column
- washeluting with a gradient of n-heptane:EtOAc (100:0 to 0:100)
- customFurther purification by preparative HPLC (Gemini NX) with a gradient of MeOH
Sources & evidence
- ORD record
- ord-4c8af4bd929c47fab7e4e56d5cb83955
- Source dataset
- uspto-grants-2015_03
- Patent number
- US08987307B2
Reaction notes
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