NEW MATERIAL:2-Ureido-4,5-dimethoxybenzoic acid amide shown by the formula I .

USE: Useful as an intermediate for synthesizing drugs. For example, useful as an intermediate for synthesizing a guinazoline antihypertensive.

PROCESS: 2-Amino-4,5-dimethoxybenzoic acid amide shown by the formula II is reacted with an alkali metal cyanate (e.g., sodium cyanate, potassium cyanate, etc.) in an acidic solvent such as acetic acid, hydrochloric acid, sulfuric acid, etc. at 0W100°C, preferably at 15W30°C for 30minW24hr to give a compound shown by the formula I . This compound is then treated with an alkali to give 2,4-dihydroxy-6,7-dimethoxyquinazoline.