反应详情

A mixture of 7-benzyloxy-4-(2-fluoro-5-methoxycarbonyloxy-4-methylanilino)-6-methoxyquinazoline hydrochloride (700 mg, 1.4 mmol) and 10% palladium-on-charcoal (100 mg) in DMF (10 ml), methanol (10 ml) and trichloromethane (10 ml) was stirred under hydrogen at 1 atmosphere pressure for 1 hour. The catalyst was removed by filtration through diatomaceous earth and the solvent was removed by evaporation. The residue was triturated with ether, collected by filtration and dried under vacuum to give 4-(2-fluoro-5-methoxycarbonyloxy-4-methylanilino)-7-hydroxy-6-methoxyquinazoline hydrochloride (570 mg, 98%).

1. customThe catalyst was removed by filtration through diatomaceous earth
2. customthe solvent was removed by evaporation
3. customThe residue was triturated with ether
4. filtrationcollected by filtration
5. customdried under vacuum