反应详情

7-Chloro-1-(2-methyl-4-(2-methylbenzamido)benzoyl)-2,3,4,5-tetrahydro-1H-benzo[b]azepin-5-yl 4-chlorobutyrate (0.5 g) was dissolved in acetonitrile (10 ml). 1-Acetylpiperazine (0.35 g), sodium iodide (0.41 g), and sodium carbonate (0.19 g) were added to the solution, and the mixture was heated under reflux for 19 hours. The reactant was poured into water, and the mixture was extracted with ethyl acetate, washed with water, dried over sodium carbonate. After filtration and concentration under reduced pressure, the residue was purified by silica gel column chromatography (dichloromethane:methanol=100:1→100:10) to obtain 0.3 g of 7-chloro-1-(2-methyl-4-(2-methylbenzamido)benzoyl)-2,3,4,5-tetrahydro-1H-benzo[b]azepin-5-yl 4-(4-acetylpiperazin-1-yl)butyrate as colorless oil.

1. temperaturethe mixture was heated
2. temperatureunder reflux for 19 hours
3. extractionthe mixture was extracted with ethyl acetate
4. washwashed with water
5. dry with materialdried over sodium carbonate
6. filtrationAfter filtration and concentration under reduced pressure
7. customthe residue was purified by silica gel column chromatography (dichloromethane:methanol=100:1→100:10)