substituted azaquinazolines with antiviral efficacy. The invention relates to azaquinozolines and the process for their preparation, as well as to their use as an antiviral agent, particularly against cytomegalovirus.azaquinazolinas substituídas com eficácia antiviral. a invenção refere-se a azaquinozolinas e a processo para sua preparação, assim como ao emprego como agente antiviral, particularmente contra citomegalovírus.