Abstract: The invention relates to racemic or optically active 1,3,4-benzotriazepin-5(4H)-one derivatives, a process for the preparation thereof, pharmaceutical compositions comprising the same, to the use of the said compounds for the treatment of diseases and for the preparation of pharmaceutical compositions containing the said compounds as active agent.The new compounds according to the invention correspond to the general formula (I), ##STR1## wherein R.sup.1 represents hydrogen or straight or branched chain C.sub.1-4 alkyl optionally carrying a pyridyl or a phenyl substituent;R.sup.2 stands for cyanoimino;R.sup.3 denotes hydrogen or straight or branched chain C.sub.1-4 alkyl;R.sup.4 stands for C.sub.1-4 alkyl; andthe dotted line does not represent a valency bond; orR.sup.2 stands for a group of the formula R.sup.9 R.sup.10 N, whereinR.sup.9 and R.sup.10 are independently hydrogen or straight or branched chain C.sub.1-10 alkyl, orR.sup.9 R.sup.10 N together form a 5- to 7-membered heterocyclic group; orR.sup.9 R.

Abstract: Racemic or optically active new 3(2H)-pyridazinone derivatives, a process for the preparation thereof, pharmaceutical compositions comprising the same, to the use of the said 3(2H)-pyridazinone derivatives for the treatment of diseases and for the preparation of pharmaceutical compositions suitable for the treatment of diseases.

Abstract: The invention refers to new diamines of the Formula I ##STR1## wherein R stands for ##STR2## or --NH--COA.sup.1 --R.sup.4 or ##STR3## wherein A stands for C.sub.1-5 alkylene which can be substituted by hydroxyl,X stands for a single or double bond,R.sup.2 stands for aryl or heteroaryl optionally substituted by halogen, C.sub.1-4 alkoxy or acylamino,R.sup.3 stands for hydrogen or C.sub.1-4 alkyl,A.sup.1 stands for a single bond or C.sub.1-5 alkyl optionally substituted by hydroxyl or thioalkylene or oxyalkylene,R.sup.4 stands for a 5- or 6- membered aromatic or heteroaromatic ring which can be substituted by one or more hydroxyl, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy and/or halogen or methylenedioxy and the alkyl group can be unsaturated as well,Q stands for a 6-membered ring which can be partially hydrogenated, andR.sup.1 stands for C.sub.1-4 alkyl.The new compounds are antiarrhythmic agents.

Abstract: The invention refers to new diamines of the Formula I ##STR1## wherein R stands for ##STR2## wherein A stands for C.sub.1-5 alkylene which can be substituted by hydroxyl,X stands for a single or double bond,R.sup.2 stands for aryl or heteroaryl optionally substituted by halogen, C.sub.1-4 alkoxy or acylamino,R.sup.3 stands for hydrogen or C.sub.1-4 alkyl,A.sup.1 stands for a single bond or C.sub.1-5 alkyl optionally substituted by hydroxyl or thioalkylene or oxyalkylene,R.sup.4 stands for a 5- or 6- membered aromatic or heteroaromatic ring which can be substituted by one or more hydroxyl, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy and/or halogen or methylenedioxy and the alkyl group can be unsaturated as well,Q stands for a 6-membered ring which can be partially hydrogenated, andR.sup.1 stands for C.sub.1-4 alkyl.The new compounds are antiarrhythmic agents.

Abstract: The invention refers to new diamines of the Formula I ##STR1## wherein stands for ##STR2## wherein A stands for C.sub.1-5 alkylene which can be substituted by hydroxyl,X stands for a single or double bond,R.sup.2 stands for aryl or heteroaryl optionally substituted by halogen, C.sub.1-4 alkoxy or acylamino,R.sup.3 stands for hydrogen or C.sub.1-4 alkyl,A.sup.1 stands for a single bond or C.sub.1-5 alkyl optionally substituted by hydroxyl or thioalkylene or oxyalkylene,R.sup.4 stands for a 5- or 6- membered aromatic or heteroaromatic ring which can be substituted by one or more hydroxyl, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy and/or halogen or methylenedioxy and the alkyl group can be unsaturated as well,Q stands for a 6-membered ring which can be partially hydrogenated, andR.sup.1 stands for C.sub.1-4 alkyl.The new compounds are antiarrhythmic agents.

Abstract: The invention relates to new substituted dihydropyridine derivatives of the general formula (I), ##STR1## wherein R.sup.1 and R.sup.6 are as defined herein after, the racemic and optically active variants as well as mixtures thereof, furthermore the acid addition salts of these compounds, pharmaceutical compositions containing the same and a process for the preparation thereof.The compounds of the general formula (I) can be advantageously applied for the treatment of pathologically severe hypertensions, their toxicity is low and they possess an advantageous therapeutic index.

Abstract: Compounds are disclosed of the formula (I) ##STR1## wherein A.sup.1 is a valence bond or a C.sub.1 to C.sub.5 straight or branched chain alkylene group unsubstituted or substituted by hydroxy or aminocarbonyl;B is a valence bond or a double bond;R.sup.3 is hydrogen or C.sub.1 to C.sub.4 alkyl;R.sup.2 is a phenyl or phenoxy group unsubstituted or substituted by one or two C.sub.1 to C.sub.4 alkyl groups, C.sub.1 to C.sub.4 alkoxy groups, or halo substituents; or R.sup.2 is an amino group, a diphenylmethyl group, or an R.sup.4 --NH--CO-- group in whichR.sup.4 is 2,6-dimethyl-phenyl; or a pharmaceutically acceptable acid addition salt thereof. The compounds possess anti-arrhythmic activity and exert little or no hypotensive side effects.

Abstract: The invention relates to new anti-arrhythmic compounds of the formula (I) ##STR1## wherein A is C1 to C5 alkylene which can be substituted by hydroxyl;X is a single or a double bond; andQ is a 6-membered carbocyclic moiety fused to each of the adjacent carbonyl carbon atoms, and which is either fully hydrogenated, partially hydrogenated, or aromatic, or a pharmaceutically acceptable acid addition salt thereof.