4-Bromo-2-fluoroaniline → 4-((4-Bromo-2-fluorophenyl)amino)-7-methoxyquinazolin-6-yl acetate

Participants

Reaction Conditions

Reaction Steps

To a solution of 6-acetoxy-7-methoxy-quinazolin-4-one (RO0505111-000) (1.0 g, 4.26 mmol) (from Example 15, Step A, supra) in SOCl2 (12.5 mL) (Aldrich) were added a few drops of DMF (0.1 mL). The reaction mixture was then heated with stirring at 100° C. for 3 hours. The solvents were evaporated and the residue was dried in vacuo. The residue was dissolved in 2-propanol (20 mL), then 4-bromo-2-fluoroaniline (0.891 g, 4.69 mmol) (Aldrich) was added. The reaction mixture was heated at 110° C. for 3 hours. The reaction mixture was cooled to room temperature and filtered. The precipitate was collected and dried in vacuo to give 6-acetoxy-4-(4-bromo-2-fluoro-phenylamino)-7-methoxy-quinazoline as a gray solid. (Yield 1.42 g, 82%).

Provenance & Evidence