Abstract:
A series of 2-substituted and 2,3-disubstituted benzo(6,7)quinazoline-4-ones have been synthesized as possible CNS depressants. 2-Substituted products, viz. hydrazino, phenylhydrazino and amino, have been obtained by the reaction of 2-ethylthio-benzo(6,7) quinazolin-4-one with hydrazine, phenylhydrazine, and primary and secondary amines. The 2,3-disubstituted derivatives have been obtained by the reaction of 2-mercapto-3-phenyl-benzo(6,7)quinazoline-
4-one with appropriate alkyl, arylalkyl, dialkylamino-alkyl halides in the presence of alcoholic sodium hydroxide. Some of the compounds exhibit CNS-depressant activity at high dosage.
