| 摘要 |
Novel triazoloquinazolinones of the formula <IMAGE> (I) wherein X is selected from the group consisting of hydrogen, halogen, -NO2, methyl, methoxy and -CF3, n is an integer from 2 to 5, R1 and R2 are individually selected from the group consisting of hydrogen and alkyl and hydroxyalkyl of 1 to 5 carbon atoms and taken together with the nitrogen atom to which they are attached form a saturated heterocycle optionally containing another heteroatom and optionally substituted with at least one member of the group consisting of hydroxy, alkyl and hydroxyalkyl of 1 to 5 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, acyl of an aliphatic carboxylic acid of 1 to 5 carbon atoms, alkoxycarbonyl of 2 to 6 carbon atoms and aryl optionally substituted with a halogen or -CF3 and their non-toxic, pharmaceutically acceptable acid addition salts having antihistaminic and bronchospasmolytic activity and their preparation.
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