Abstract: New compounds of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each is a saturated or unsaturated, straight-chained or branched alkyl group, an aralkyl group, a saturated or unsaturated cycloalkyl group or an aryl group, orR.sub.1 and R.sub.2 together with the adjacent nitrogen atom forms a substituted or unsubstituted heterocyclic group with or without a further oxygen or nitrogen heteroatom, andR.sub.3 is hydrogen or an acyl group derived from a C.sub.1-18 carboxylic acid. The compounds are prepared by reducing the corresponding nitro compounds of the formula (II) ##STR2## and optionally acylating the obtained product. The compounds of the formula (I) and their acid addition salts and quaternary ammonium salts are active primarily in the induction of liver microsomal enzymes, but they also possess valuable antipyretic activity and a yohimbine lethality increasing effect characteristic of antidepressants.

Abstract: Curare-type salts of the formula ##STR1## WHEREIN Ac is an alkyl carbonyl group containing 1 to 4 carbon atoms in the alkyl moiety and one ofR.sub.1 and R.sub.2, is a methylene group and the other is a group of the formula >N-R.sub.2 wherein R.sub.2 is an alkyl group containing 1 to 3 carbon atoms,A is halogen andR.sub.3 is an alkyl group containing 1 to 4 carbon atoms, or an alkyl group; andA process for the preparation thereof are disclosed.

Abstract: New compounds of the general formula (I), ##STR1## wherein R.sub.1 and R.sub.2 each stand for a saturated or unsaturated, straight-chained or branched alkyl group, an aralkyl group, a saturated or unsaturated cycloalkyl group or an aryl group, orR.sub.1 and R.sub.2 together with the adjacent nitrogen atom may form an optionally substituted heterocyclic group optionally containing a further oxygen or nitrogen hetero atom,But if R.sub.1 stands for methyl, R.sub.2 may only stand for a group other than methyl, are prepared by reacting a compound of the general formula ##STR2## wherein X stands for halogen, with a secondary amine of the general formula (III),r.sub.1 --nh--r.sub.2 (iii)wherein R.sub.1 and R.sub.2 each have the same meanings as defined above.The new compounds of the general formula (I), as well as their pharmaceutical acceptable acid addition salts or quaternary ammonium salts are active primarily in the induction of liver microsomal enzyme, but they also possess antipyretic activity.

Abstract: New compounds of the general formula (I) ##SPC1##whereinR.sub.1 and R.sub.2 each is a saturated or unsaturated, straight-chained or branched alkyl group, an aralkyl group, a saturated or unsaturated cycloalkyl group or an aryl group, orR.sub.1 and R.sub.2 together with the adjacent nitrogen atom may form substituted or unsubstituted heterocyclic group with or without a further oxygen or nitrogen heteroatom, andR.sub.3 is hydrogen or an acyl group derived from a C.sub.1.sub.-18 carboxylic acid.The compounds are prepared by reducing the corresponding nitro compounds of the general formula (II) ##SPC2##and optionally acylating the obtained product.The compounds of the general formula (I) and their acid addition salts and quaternary ammonium salts are active primarily in the induction of liver microsomal enzyme, but they also possess valuable antipyretic activity and a yohimbine lethality increasing effect characteristic of antidepressants.

Abstract: New compounds of the formula (I), ##SPC1##whereinR.sub.1 and R.sub.2 each stand for a saturated or unsaturated, straightchained or branched alkyl group, an aralkyl group, a saturated or unsaturated cycloalkyl group or an aryl group, orR.sub.1 and R.sub.2 together with the adjacent nitrogen atom form a substituted or unsubstituted heterocyclic group which can contain a further oxygen or nitrogen hetero atom,But when R.sub.1 is methyl, R.sub.2 is a group other than methyl, are prepared by reacting a compound of the formula (II), ##SPC2##wherein X stands for halogen, with a secondary amine of the general formula (III),r.sub.1 --nh--r.sub.2. (iii)the new compounds of the general formula (I), as well as their pharmaceutical acceptable acid addition salts or quaternary ammonium salts are active primarily in the induction of liver microsomal enzyme, but they also possess antipyretic activity.