反应详情

A solution of N-(4-chloromethylphenyl)-7—(4-methylphenyl)-2,3-dihydro-1-benzoxepine-4-carboxamide (0.18 g) and 1-ethylpiperidine (0.31 ml) in dimethylformamide (5 ml) were stirred at 50° C. overnight. The solvent was evaporated, and to the residue was added ethyl acetate. Precipitated crude crystal was filtered, which were recrystallized from ethanol-ethyl acetate to give 1—(N-(7—(4-methylphenyl)-2,3-dihydro-1-benzoxepin-4-carbonyl)-4-amino-benzyl)-1-ethylpiperidinium chloride (Compound 98) (0.17 g) as colorless crystals.

1. customThe solvent was evaporated
2. additionto the residue was added ethyl acetate
3. customPrecipitated crude crystal
4. filtrationwas filtered
5. customwhich were recrystallized from ethanol-ethyl acetate