Abstract: 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.

Abstract: 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 --0--, ##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.0 and X is hydrogen or taken with Y is .dbd.0, 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 anti-allergic activity and their preparation.

Abstract: Novel imidazoquinoxalines of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydroxy, alkoxy of 1 to 5 carbon atoms and cyclohexylcarbonyloxymethoxy, R.sub.2 is selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms, alkoxycarbonylvinyl of 4 to 7 carbon atoms, --COR, --CONH(CH.sub.2).sub.n --X and --A--(CH.sub.2).sub.m --Y, R is selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms, cycloalkyl of 3 to 10 carbon atoms, alkenyl of 2 to 4 carbon atoms, alkoxy of 1 to 5 carbon atoms, alkoxycarbonyl of 2 to 5 carbon atoms, amino, --CF.sub.3, --CHCl.sub.2 --, phenyl, aralkyl of 7 to 10 carbon atoms, aralkoxy of 7 to 10 carbon atoms, n is 0 and X is phenyl or n is an integer from 1 to 5 and X is selected from the group consisting of ##STR2## R.sub.3 and R.sub.

Abstract: Novel imidazo[1,2-a]quinolines of the formula ##STR1## wherein R is selected from the group consisting of alkyl of 1 to 8 carbon atoms, thienyl, pyridyl and phenyl optionally substituted with at least one member of the group consisting of halogen, alkyl of 1 to 5 carbon atoms and alkoxy of 1 to 5 carbon atoms, R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen, halogen, alkyl and alkoxy of 1 to 8 carbon atoms,s cyclohexyl, --NO.sub.2 and phenoxy, R.sub.3 is selected from the group consisting of alkoxy and alkylthio of 1 to 8 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having a remarkable anxiolytic activity and a hypnotic activity and their preparation.

Abstract: 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.

Abstract: Novel oxoimidazoquinoxalines of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen, chlorine and bromine, X is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, cycloalkyl of 3 to 5 carbon atoms and cycloalkyl-alkyl of 4 to 6 carbon atoms, R.sub.3 is selected from the group consisting of hydrogen alkyl of 1 to 5 carbon atoms, alkali metal, alkaline earth metal, aluminum, --NH.sub.4, organic amine and ##STR2## R.sub.4 and R.sub.5 are individually alkyl of 1 to 5 carbon atoms or taken together with the nitrogen atom form a saturated heterocycle of 4 to 6 carbon atoms optionally containing an oxygen atom or second nitrogen atom and n is a number from 1 to 5 and their non-toxic, pharmaceutically acceptable acid addition salts having antiallergic activity and their preparation.

Abstract: Novel imidazoquinoxalines of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, --NH.sub.4, alkali metal, alkaline earth metal, magnesium, aluminum and non-toxic, pharmaceutically acceptable amines, X is selected from the group consisting of hydrogen, alkoxy of 1 to 5 carbon atoms and carbamoyl and Y and Z are individually selected from the group consisting of hydrogen and halogen and their non-toxic, pharmaceutically acceptable acid addition salts having anti-allergic activity and their preparation.

Abstract: A novel process for the preparation of xanthane-2-carboxylic acids of the formula ##STR1## wherein R is selected from the group consisting of hydrogen and alkyl of 1 to 9 carbon atoms and R.sub.1 is alkyl of 1 to 5 carbon atoms which possess an antiallergic activity and are particularly useful for treating asthma and asthmatic form bronchitisis of allergic origin.