Novel compounds of the formula ##STR1## wherein A is selected from the group consisting of nitrogen and .dbd.CH--, G is selected from the group consisting of ##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-nitrogen or carbon-carbon bond, Z' is selected from the group consisting of hydrogen and halogen, Y is hydrogen, or taken with Z is a carbon-nitrogen or 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.
化合物的新颖结构式为##STR1## 其中A选自氮和.dbd.CH--的群组,G选自##STR2##的群组,Z选自1到5个碳原子的氢和烷基,或与Y一起形成碳氮或碳碳键,Z'选自氢和卤素的群组,Y为氢,或与Z一起形成碳氮或碳碳键,或与X一起为.dbd.O,X为氢,或与Y一起为.dbd.O,R选自羟甲基、甲酰基、
四唑-5-基、N-(
四唑-5-基)
氨甲酰基、
氨甲基和
氨基甲酰基的群组,R.sub.1选自1到5个碳原子的卤素和烷氧基的群组,以及其无毒、药学上可接受的酸盐,具有抗过敏活性,并且可以制备这些化合物。