Novel compounds of the formula ##STR1## wherein A is selected from the group consisting of nitrogen and .dbd.CH--, G is ##STR2## Z is selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms or taken with Y forms a carbon-carbon bond, Z' is selected from the group consisting of hydrogen and halogen, Y is hydrogen, or taken with Z is a carbon-carbon bond or taken with X is .dbd.O and X is hydrogen or taken with Y is .dbd.O, R is selected from the group consisting of hydroxymethyl, formyl, tetrazol-5-yl, N-(tetrazol-5-yl) carbamoyl, aminomethyl and carbamoyl, R.sub.1 is selected from the group consisting of hydrogen, halogen and alkoxy of 1 to 5 carbon atoms and its non-toxic, pharmaceutically acceptable acid addition salts having antiallergic activity and their preparation.
化合物的公式为##STR1##其中A选自由氮和.dbd.CH--的组合,G为##STR2##,Z选自1到5个碳原子的氢和烷基组成的组合或与Y形成碳-碳键,Z'选自氢和卤素的组合,Y为氢或与Z形成碳-碳键或与X形成.dbd.O,X为氢或与Y形成.dbd.O,R选自羟甲基、甲酰基、
四唑-5-基、N-(
四唑-5-基)
氨基甲酰、
氨甲基和
氨基甲酰的组合,R.sub.1选自1到5个碳原子的卤素和烷氧基的组合,以及其无毒、药学上可接受的酸加合物,具有抗过敏活性,其制备方法。