反应详情

温度

220 °C

Combine 4-chloro-8-(2,4-dimethoxybenzyl)-5-(trifluoromethyl)-5,6-dihydropyrido[2,3-d]pyrimidin-7(8H)-one (0.65 g, 1.62 mmol), 4-(1-(2-(pyrrolidin-1-yl)ethyl)-4-(trifluoromethyl)-1H-imidazol-2-yl)piperidine trihydrochloride (0.76 g, 1.1 eq), N-methylpyrrolidinone (20 mL) and diisopropylethylamine (1.69 mL, 6.0 eq) in a sealed vessel. Heat at 220° C. for 30 minutes. Dilute the reaction mixture with water and extract with ethyl acetate. Wash the organics with saturated aqueous sodium chloride. Dry the organics over anhydrous sodium sulfate, filter, and concentrate in vacuo. Purify by normal phase chromatography, eluting with a 1-10% methanol/dichloromethane gradient, to give crude 8-(2,4-dimethoxybenzyl)-4-(4-(1-(2-(pyrrolidin-1-yl)ethyl)-4-(trifluoromethyl)-1H-imidazol-2-yl)piperidin-1-yl)-5-(trifluoromethyl)-5,6-dihydropyrido[2,3-d]pyrimidin-7(8H)-one (crude).

1. extractionextract with ethyl acetate
2. washWash the organics with saturated aqueous sodium chloride
3. dry with materialDry the organics over anhydrous sodium sulfate
4. filtrationfilter
5. concentrationconcentrate in vacuo
6. customPurify by normal phase chromatography
7. washeluting with a 1-10% methanol/dichloromethane gradient