反应详情

One droplet of DMF was added to a solution of 7-(4-butoxyethoxyphenyl)-1-(4-methoxybenzyl)-2,3-dihydro-1-benzazepine-4-carboxylic acid (140 mg) in tetrahydrofuran (10 ml). Then, thionyl chloride (100 mg) was added at 0° C., the temperature was returned to room temperature, and the mixture was stirred under nitrogen atmosphere for 1 hour. The solvent and excess thionyl chloride were evaporated under reduced pressure, the resulting residue was suspended in tetrahydrofuran (25 ml), and the suspension was added to a solution of 4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]aniline (74 mg) and triethylamine (344 mg) in tetrahydrofuran (10 ml) at 0° C. The suspension was stirred under nitrogen atmosphere at room temperature for 3.5 hours, to the mixture was added water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried with magnesium sulfate. The solvent was evaporated under reduced pressure, the resulting residue was separated and purified with silica gel column chromatography (methanol:ethyl acetate=1:8), which was recrystallized from hexane-ethyl acetate to give 7-(4-butoxyethoxyphenyl)-1-(4-methoxybenzyl)-N-[4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]phenyl]-2,3-dihydro-1-benzazepine-4-carboxamide (Compound 56) (89 mg) as yellow crystals.

1. customwas returned to room temperature
2. customThe solvent and excess thionyl chloride were evaporated under reduced pressure
3. additionthe suspension was added to a solution of 4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]aniline (74 mg) and triethylamine (344 mg) in tetrahydrofuran (10 ml) at 0° C
4. stirringThe suspension was stirred under nitrogen atmosphere at room temperature for 3.5 hours, to the mixture
5. additionwas added water
6. extractionthe mixture was extracted with ethyl acetate
7. washThe organic layer was washed with saturated brine
8. dry with materialdried with magnesium sulfate
9. customThe solvent was evaporated under reduced pressure
10. customthe resulting residue was separated
11. custompurified with silica gel column chromatography (methanol:ethyl acetate=1:8), which
12. customwas recrystallized from hexane-ethyl acetate