反应详情

A solution of 4-(4-bromo-2,6-difluoroanilino)-7-(1-(tert-butoxycarbonyl)piperidin-4-ylmethoxy)-6-methoxyquinazoline (578 mg, 1 mmol) in methylene chloride (10 ml) containing TFA (4 ml) was stirred at ambient temperature for 2 hours. The volatiles were removed under vacuum and the residue was suspended in water. The aqueous layer was adjusted to approximately pH10 and was extracted with methylene chloride. The organic layer was washed with water, brine, dried (MgSO4) and the volatiles were removed by evaporation. The residue was triturated with ether and dried under vacuum to give 4-(4-bromo-2,6-difluoroanilino)-6-methoxy-7-(piperidin-4-ylmethoxy)quinazoline (110 mg, 23%).

1. customThe volatiles were removed under vacuum
2. extractionwas extracted with methylene chloride
3. washThe organic layer was washed with water, brine
4. dry with materialdried (MgSO4)
5. customthe volatiles were removed by evaporation
6. customThe residue was triturated with ether
7. customdried under vacuum