反应详情

To a solution of (S)-2-(4-(N-cyclohexyl-N-methylamino)phenyl) piperazine (50 mg, 0.183 mmol) and triethylamine (0.077 mL, 0.55 mmol) was added 2-chloro-3-methyl-6-(4-pyridyl)-3H-pyrimidin-4-one (37 mg, 0.17 mmol) at room temperature. After stirring for 4.5 h, the reaction mixture was concentrated in vacuo. The residue was partitioned between dichloromethane and saturated sodium bicarbonate aqueous solution. The organic layer was dried over anhydrous sodium sulfate and concentrated. The residue was purified by a reverse phase chromatography eluting 0.05% TFA in water-acetonitrile to afford (S)-2-(3-(4-(N-cyclohexyl-N-methylamino)phenyl)piperazin-1-yl)-3-methyl-6-(4-pyridyl)pyrimidin-4-one (67 mg, 88%) as a oil, which was dissolved in ethyl acetate and treated with 4 N hydrogen chloride in ethyl acetate to yield its trihydrochloride.

1. concentrationthe reaction mixture was concentrated in vacuo
2. customThe residue was partitioned between dichloromethane and saturated sodium bicarbonate aqueous solution
3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
4. concentrationconcentrated
5. customThe residue was purified by a reverse phase chromatography
6. washeluting 0.05% TFA in water-acetonitrile