Hydrochloric Acid → HCID 25002289, compound

Participants

Reaction Steps

To a solution of 2.5 g of methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid dissolved in a mixed solvent consisting of 50 mL of tetrahydrofuran and 25 mL of methanol was added 11.3 mL of a 5 N sodium hydroxide solution, followed by stirring at room temperature for 12 hours. The reaction mixture was adjusted to be acidic by addition of 5 N hydrochloric acid, and the obtained solid was then filtrated, washed with 10 mL of water and 20 mL of ether, and dried under aeration to give 2.5 g of a target product. Yield: 95.3%.

Provenance & Evidence