反应详情

A solution of N4-(tert-butyloxycarbonyl)-N3-(4-methoxybenzoyl)-3,4-pyridinediamine (600 mg, 1.75 mmol) in methylene chloride (8 mL) was treated with trifluoroacetic acid (1.35 mL, 17.5 mmol). After 6.5 h, the mixture was concentrated and the residue dissolved in water and treated with 5 N aqueous sodium hydroxide. The resulting precipitate was collected by filtration yielding 325 mg (76%) of the title compound.

1. concentrationthe mixture was concentrated
2. dissolutionthe residue dissolved in water
3. additiontreated with 5 N aqueous sodium hydroxide
4. filtrationThe resulting precipitate was collected by filtration