New compounds of the formula (I), ##SPC1## wherein R.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, or R.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.
N-methyl substituted piperazino nitrobenzophenones and a process for the
申请人:Richter Gedeon Vegyeszeti Gyar Rt.
公开号:US03975390A1
公开(公告)日:1976-08-17
New compounds of the general formula (I), ##SPC1## 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, or R.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 (II), ##SPC2## 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.
Substituted nitrobenzophenone derivatives and a process for the
申请人:Richter Gedeon Vegyeszeti Gyar Rt.
公开号:US04064121A1
公开(公告)日:1977-12-20
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, or R.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.