反应详情

(2-{1-[(5-Chloro-2,4-dimethoxy-phenylcarbamoyl)-methyl]-2,4-dioxo-1,4-dihydro-2H-quinazolin-3-yl}-ethyl)-carbamic acid tert-butyl ester (100 mg, 1.88 mmol) is taken up in DCM (2 ml) and treated with TFA (2 ml). The reaction is stirred at RT for 2 hours and then treated with EtOAc (20 ml). After 5 minutes, the white solid present is filtered, washed with EtOAc, ether and dried under vacuum to give the title compound as a white solid; [M+H]+ 433,

1. waitAfter 5 minutes
2. filtrationthe white solid present is filtered
3. washwashed with EtOAc, ether
4. customdried under vacuum