Patents by Inventor Hans Kuhnis
Hans Kuhnis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4808603Abstract: Compounds of the formula ##STR1## in which R represents a carbocyclic or heterocyclic aryl radical, R.sub.1 represents lower alkyl, one of the groups R.sub.2 and R.sub.3 represents lower alkyl and the other represents lower alkyl, cyano aor amino, X represents oxygen or the group --NH--, Alk.sub.1 represents lower alkylene or optionally substituted phenyl-lower alkylene, which separates the group X from the nitrogen atom by at least two carbon atoms, R.sub.4 represents hydrogen, lower alkyl or optionally substituted phenyl-lower alkyl, Z represents the group --(C.dbd.O)-- or a single bond, Alk.sub.2 represents lower alkylene which separates the groups Z and Y preferably by from 2 to 4 carbon atoms, Y represents the group --(C.dbd.O)-- and Ar.sub.1 represents a monocyclic, carbocyclic or heterocyclic aryl radical, and salts of such compounds having salt-forming properties, have cardiovascular properties, especially coronary dilatory and anti-hypertensive properties.Type: GrantFiled: August 7, 1986Date of Patent: February 28, 1989Assignee: Ciba-Geigy CorporationInventors: Kurt Eichenberger, Hans Kuhnis
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Patent number: 4616002Abstract: Compounds of the formula I ##STR1## in which n represents 1, 2 or 3, Ar represents a carbocyclic or heterocyclic aryl radical, Ac represents the acyl radical of an acid, Z represents a radical --OR.sub.7 or --NR.sub.8 R.sub.9, R.sub.1 represents hydrogen, unsubstituted or substituted lower alkyl, a carbocyclic or heterocyclic aryl radical or free, etherified or esterified hydroxy, R.sub.2 and R.sub.3, independently of one another, each represents hydrogen, unsubstituted or substituted lower alkyl, formyl or functionally modified formyl, carboxy or functionally modified carboxy, a carbocyclic or heterocyclic aryl radical or unsubstituted or mono- or di-substituted amino, R.sub.4 represents hydrogen or lower alkyl, R.sub.5 and R.sub.6, independently of one another, each represents hydrogen, unsubstituted or substituted lower alkyl or a carbocyclic or heterocyclic aryl radical, R.sub.7, R.sub.8 and R.sub.Type: GrantFiled: January 6, 1986Date of Patent: October 7, 1986Assignee: Ciba-Geigy CorporationInventors: Bruno Kamber, Thomas Leutert, Hans Kuhnis, Kurt Eichenberger
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Patent number: 4497808Abstract: The present invention relates to novel N-oxide compounds that have cardiovascular properties, especially antihypertensive activity, and that correspond to the formula ##STR1## in which Py represents an unsubstituted or substituted N-oxidopyridyl radical, R.sub.1 represents hydrogen or unsubstituted or substituted lower alkyl, one of the radicals R.sub.2 and R.sub.3 represents lower alkyl and the other represents hydrogen; lower alkyl; lower alkyl containing free, etherified or esterified hydroxy, oxo, functionally modified carboxy or free or substituted amino or imino; functionally modified carboxy; or free or substituted amino, it being possible for an amino group R.sub.2 or R.sub.3 to be bonded to a lower alkyl radical R.sub.1 or, if R.sub.2 or R.sub.3 represents, for example, hydroxy-lower alkyl, for this hydroxy-lower alkyl, together with the adjacent acyl radical Ac.sub.1 or Ac.sub.Type: GrantFiled: December 27, 1982Date of Patent: February 5, 1985Assignee: Ciba-Geigy CorporationInventors: Markus Zimmermann, Hans Kuhnis
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Patent number: 4304912Abstract: Piperidines of the formula ##STR1## in which R.sub.1 is a substituted or unsubstituted heteroaryl radical, alk.sub.1 and alk.sub.2 independently of one another are lower alkylene radicals, each of which separates by 2 carbon atoms the nitrogen atom bonded thereto from the methane group bonded thereto, R.sub.2 is a free or acylated hydroxyl group, Ph is a substituted or unsubstituted o-phenylene radical, n is 0 or 1, R.sub.3 is a hydrogen atom, a lower alkyl radical or a hydroxyl group and R.sub.5 is a lower alkyl radical or a hydrogen atom, or R.sub.3 and R.sub.5 together are a second bond and R.sub.4 and R.sub.6 are each a hydrogen atom, or R.sub.4 together with R.sub.3 is an oxo group, R.sub.5 is a lower alkyl radical or a hydrogen atom and R.sub.6 is a hydrogen atom, or R.sub.6 together with R.sub.5 is an oxo group, R.sub.3 is a hydrogen atom, a lower alkyl radical or a hydroxyl group and R.sub.4 is a hydrogen atom, or salts thereof are antihypertensive and antiarrhythmic agents.Type: GrantFiled: December 10, 1979Date of Patent: December 8, 1981Assignee: Ciba-Geigy CorporationInventors: Herbert Schroter, Kurt Eichenberger, Hans Kuhnis, Christian Egli, Oswald Schier, Franz Ostermayer
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Patent number: 4264599Abstract: The invention relates to novel piperidino-propanols, especially 1-(3-heterocyclyloxy-2-hydroxy-propanol)-4-(N-diazcyclyl)-piperidines of the formula ##STR1## in which R.sub.1 is a substituted or unsubstituted heteroaryl radical, R.sub.2 is hydrogen or a substituted or unsubstituted aliphatic, cycloaliphatic, cycloaliphatic-aliphatic or araliphatic hydrocarbon radical or an acyl radical and alk is lower alkylene which separates the two nitrogen atoms from one another by 2 or 3 carbon atoms, or is a substituted or unsubstituted 1,2-phenylene radical, and salts thereof, as well as processes for their preparation, and also to pharmaceutical preparations containing these compounds and the use thereof, preferably in the form of pharmaceutical preparations as antihypertensive agents, antitachycardiac agents and .alpha.-sympathicolytic agents.Type: GrantFiled: July 3, 1978Date of Patent: April 28, 1981Assignee: Ciba-Geigy CorporationInventors: Kurt Eichenberger, Hans Kuhnis, Franz Ostermayer, Herbert Schroter
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Patent number: 4217350Abstract: A process known per se for the manufacture of oxygenated N-aryl-diazacyclic compounds of the formula ##STR1## wherein each of R.sub.1 and R.sub.2 represents a substituted or unsubstituted aryl group and alk represents a lower alkylene group which separates both nitrogen atoms from each other by 2 or 3 carbon atoms, or salts thereof.The novel compounds can be used as antihypertensives, antitachycardiac agents and .alpha.-receptor blockers.Type: GrantFiled: December 22, 1978Date of Patent: August 12, 1980Assignee: Ciba-Geigy CorporationInventors: Kurt Eichenberger, Hans Kuhnis, Franz Ostermayer, Herbert Schroter
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Patent number: 4144344Abstract: A process known per se for the manufacture of oxygenated N-aryl-diazacyclic compounds of the formula ##STR1## wherein EACH OF R.sub.1 and R.sub.2 represents a substituted or unsubstituted aryl group and alk represents a lower alkylene group which separates both nitrogen atoms from each other by 2 or 3 carbon atoms, or salts thereof.The novel compounds can be used as antihypertensives, antitachycardiac agents and .alpha.-receptor blockers.Type: GrantFiled: January 21, 1977Date of Patent: March 13, 1979Assignee: Ciba-Geigy CorporationInventors: Kurt Eichenberger, Hans Kuhnis, Franz Ostermayer, Herbert Schroter
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Patent number: 4029795Abstract: 1-(3-Aryloxy-2-hydroxypropyl)-4-(1-oxoisoquinolino)-piperidines, e.g. those of the formula ##STR1## R' = H, alkanoylaminoethenyl, carbamoyl, alkanoyl, CN, alkoxycarbonylamino-lower alkyl, halo, OH, alkanoylamino, alkyl, alkoxy, alkenyl, alkenyloxyR" = H, alkyl, alkoxy, alkenyl, alkenyloxy,R'" = alkanoylamino, NH.sub.2, NO.sub.2, alkyl, alkoxy, halo CF.sub.3, OH2-alkanoic acid esters and acid addition salts thereof are antihypertensive and antiarrhythmic agents.Type: GrantFiled: July 14, 1975Date of Patent: June 14, 1977Assignee: Ciba-Geigy CorporationInventors: Kurt Eichenberger, Christian Egli, Hans Kuhnis, Oswald Schier
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Patent number: 4017629Abstract: The present invention relates to 1,4-dihydropyridines of the formula I ##STR1## and their tautomers, wherein R.sub.1 represents an aryl radical, R.sub.2 and R.sub.3 independently of one another represents hydrogen or a hydrocarbon radical, R.sub.4 represents an alkyl, aryl or aralkyl radical, R.sub.5 denotes an alkoxy radical, which is optionally substituted by an amino group, or denotes an amino group and n is 1 or 2, especially to the 2,6-dimethyl-3-carbomethoxy-5-methylsulphonyl-4-(2-trifluoromethylphenyl)- 1,4-dihydro-pyridine and to the 2,6-dimethyl-3-carbomethoxy-5-methylsulphonyl-4-(2-nitrophenyl)-1,4-dihydr opyridine.They have an antihypertensive activity.Type: GrantFiled: May 28, 1975Date of Patent: April 12, 1977Assignee: Ciba-Geigy CorporationInventors: Ernst Habicht, Hans Kuhnis
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Patent number: 3998955Abstract: Pyridines of the formula I ##STR1## wherein R.sub.1 is free hydroxyl, lower alkoxy, cycloalkoxy, amino-lower alkoxy or lower alkoxy-lower alkoxy, free amino, hydroxyamino, lower alkyleneamino, oxa-, aza- or thia-lower alkyleneamino or mono- or di-lower alkylamino, R.sub.2 is oxygen or sulphur, R.sub.3 and R.sub.4 are each alkoxy, free amino, mono- or di-lower alkylamino, lower alkyleneamino, oxa-, aza- or thia-lower alkyleneamino, halogen or free hydroxyl, and either R.sub.3 or R.sub.4 can be hydrogen, and alk is an alkyl group with 3-10 carbon atoms, and their N-oxides, and salts are useful as dopamine-.beta.-hydroxylase inhibitors.Type: GrantFiled: April 16, 1975Date of Patent: December 21, 1976Assignee: Ciba-Geigy CorporationInventors: Hans Kuhnis, Christian Egli, Kurt Eichenberger, Phyllis Roberta Hedwall