反应详情

A mixture of tert-butyl 9-(2,4-dimethyl-1,3-thiazol-5-yl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (240 mg, 0.666 mmol), ethyl acetate (2 ml) and 4N hydrogen chloride-ethyl acetate solution (4 ml) was stirred at room temperature for 1 hr, and the solvent was evaporated under reduced pressure. The residue was recrystallized from a mixed solvent of methanol and ether to give the desired product (180 mg, 90.9%) as a solid.

1. customthe solvent was evaporated under reduced pressure
2. customThe residue was recrystallized from a mixed solvent of methanol and ether