反应详情

To a solution of 6-(2-methoxy-phenyl)-pyrimidin-4-ylamine (XXIV) (5 g) in 20 ml of dichloromethane was added 4-dimethylaminopyridine (1.2 eq) followed by dropwise addition of 3-chlorocarbonyl-piperidine-1-carboxylic acid benzyl ester (XXV) (1.1 eq.) at room temperature. The reaction mixture was stirred for 2 hours and then washed with water. The organic layer was separated, dried over sodium sulfate and concentrated. The obtained crude residue was passed through a pad of silica gel eluting with 25% ethyl acetate in hexane to provide 3-[6-(2-methoxy-phenyl)-pyrimidin-4-ylcarbamoyl]-piperidine-1-carboxylic acid benzyl ester (XXVI) (5.1 g).

1. washwashed with water
2. customThe organic layer was separated
3. dry with materialdried over sodium sulfate
4. concentrationconcentrated
5. customThe obtained crude residue