Br.Br[CH:3]([C:13]1[CH:18]=[CH:17][N:16]=[C:15]([F:19])[CH:14]=1)[C:4]([C:6]1[CH:11]=[CH:10][CH:9]=[C:8]([CH3:12])[CH:7]=1)=O.C1([CH2:26][CH2:27][C:28]([NH2:30])=[S:29])C=CC=CC=1.C(=O)([O-])O.[Na+]>CN(C)C=O>[CH2:27]([C:28]1[S:29][C:3]([C:13]2[CH:18]=[CH:17][N:16]=[C:15]([F:19])[CH:14]=2)=[C:4]([C:6]2[CH:11]=[CH:10][CH:9]=[C:8]([CH3:12])[CH:7]=2)[N:30]=1)[CH3:26]A solution of 2-bromo-2-(2-fluoro-4-pyridyl)-1-(3-methylphenyl)ethanone hydrobromide (11 g, 29 mmol) and thiopropionamide (2.7 g, 30 mmol) in N,N-dimethylformamide (30 mL) was stirred for 14 hours at room temperature. Aqueous sodium hydrogen carbonate solution was added to the reaction mixture, and extracted with ethyl acetate. The extracts were washed with water, dried, then, the solvent was distilled off. The residue was purified by silica gel column chromatography (hexane-ethyl acetate=4:1) to obtain a title compound (3.3 g, yield 38%).
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