反应详情

温度

100 °C

0.14 g of ammonium chloride and 0.17 g of sodium azide were added to a solution of 0.7 g of 5-cyanomethyl-7-chloro-1-[2-methyl-4-(2-chlorobenzoylamino)benzoyl]-2,3,4,5-tetrahydro-1H-benzoazepine dissolved in 10 ml of dry dimethylformamide. The mixture was stirred at 100° C. for 2 hours. To the reaction mixture was added hydrochloric acid to control the pH of the mixture at about 2, followed by extraction with ethyl acetate. The organic layer was water-washed, then dried and subjected to vacuum distillation to remove the solvent. The residue was purified by silica gel column chromatography (elutant: dichloromethane/methanol =30/1) to obtain 0.52 g of 5-(1-methyl-1,2,3,4-tetrazol-5-yl)methyl-7-chloro-1-[2-methyl-4-(2-chlorobenzoylamino)-benzoyl]-2,3,4,5-tetrahydro-1H-benzoazepine.

1. extractionfollowed by extraction with ethyl acetate
2. washwashed
3. customdried
4. distillationsubjected to vacuum distillation
5. customto remove the solvent
6. customThe residue was purified by silica gel column chromatography (elutant: dichloromethane/methanol =30/1)