Patents by Inventor Karlheinz Stegmeier
Karlheinz Stegmeier 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: 5824679Abstract: The invention concerns novel phosphanoxides of formula 1 in which R.sup.1 means aryl or heteroaryl group. The invention further concern the optically active forms, racemates and diastereomers mixtures of these compounds, a method of preparing them and pharmaceutical compositions containing these compounds, and methods of use to produce a thrombin-inhibiting effect.Type: GrantFiled: February 28, 1997Date of Patent: October 20, 1998Assignee: Boehringer Mannheim GmbHInventors: Wolfgang Von Der Saal, Herbert Leinert, Karlheinz Stegmeier
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Patent number: 5795892Abstract: The invention concerns new 4-aminopyridazines of the general formula I ##STR1## in which R.sup.1 denotes an R.sup.2 --SO.sub.2 --O-- or R.sup.2 --SO.sub.2 --NR.sup.3 -- group in whichR.sup.2 denotes a cycloalkyl residue, an unsubstituted or substituted aryl or heteroaryl residue,R.sup.3 denotes a hydrogen atom, an alkyl or alkyloxyalkyl group which can be unsubstituted or substituted once or several times by hydroxy groups wherein the hydroxy groups can be substituted by alkyl, hydroxyalkyl, alkyloxyalkyl, hydroxyalkyloxyalkyl or alkylcarbonyl groups and wherein in each case two vicinal hydroxy groups can be linked together by alkylidene groups,as well as hydrates, solvates and physiologically tolerated salts thereof. The invention also concerns the optically active forms, racemates and mixtures of diastereomers of these compounds, processes for their production and pharmaceutical agents containing these compounds having a thrombin-inhibiting action.Type: GrantFiled: February 28, 1997Date of Patent: August 18, 1998Assignee: Boehringer Manneim GmbHInventors: Wolfgang Von Der Saal, Reinhard Heck, Ralf Kucznierz, Herbert Leinert, Karlheinz Stegmeier
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Patent number: 5641810Abstract: Compounds of .alpha.,.omega.-dicarboxylic acids of the formula I ##STR1## in which X and Y, which can be the same or different, signify hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, hydroxyl, cyano, carboxyl, C.sub.1 -C.sub.6 -alkoxycarbonyl or carbamoyl, R.sub.1 and R.sub.2, which can be the same or different, hydrogen or C.sub.1 -C.sub.6 -alkyl and Q a linear saturated or unsaturated alkylene chain with 2-14 C-atoms in which one or more C-atoms can be replaced by cyclohexyl rings, phenyl or heterocycles, as well as of their in vivo-hydrolysable carboxylic acid derivatives for the preparation of medicaments with fibrinogen-lowering action.Type: GrantFiled: January 25, 1995Date of Patent: June 24, 1997Assignee: Boehringer Mannheim GmbHInventors: Johannes Pill, Liesel Doerge, Karlheinz Stegmeier
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Patent number: 5446065Abstract: Compounds of the formula I ##STR1## in which R.sub.1 signifies an aryl, aralkyl or an aralkenyl group, the aryl radical of which can, in each case, be substituted one or more times by halogen, cyano, alkyl, trifluoromethyl, alkoxy, alkylthio, trifluoromethoxy, hydroxyl or carboxyl, m a whole number from 1 to 3, n a whole number from 1 to 5, R.sub.2 hydrogen, an alkyl, aralkyl or acyl group, Q a bond or an oxygen atom, R.sub.3 hydrogen or a lower alkyl radical which is possibly terminally substituted by carboxyl or by a hydroxyl group and R.sub.4 hydrogen, a lower alkyl group with 1-4 C-atoms, which is possibly terminally substituted by carboxyl or hydroxyl, a possibly substituted phenyl, heteroaryl, cycloalkyl or acyl group or a group ##STR2## in which R.sub.Type: GrantFiled: June 21, 1993Date of Patent: August 29, 1995Assignee: Boehringer Mannheim GmbHInventors: Ernst-Christian Witte, Hansjorg Beckh, Karlheinz Stegmeier, Liesel Doerge
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Patent number: 5407951Abstract: The present invention provides sulphonamides of the general formula: ##STR1## wherein R.sup.1 and R.sup.2, which can be the same or different, are hydrogen or halogen atoms or C.sub.1 -C.sub.6 -alkyl, trifluoro-methyl, cyano, carboxyl, alkoxycarbonyl, aminocarbonyl, N-alkylaminocarbonyl or N,N-dialkylaminocarbonyl radicals or, when R.sup.1 and R.sup.2 are alkyl radicals ortho to one another, R.sup.1 and R.sup.2 together with the carbon atoms to which they are attached, form a saturated or unsaturated C.sub.5-C.sub.7 -alkylene ring, R.sup.3 is a hydrogen atom, an alkyl radical containing up to 6 carbon atoms, an acyl radical, a phenylalkyl or phenylalkenyl radical, the phenyl moiety of which can be substituted by halogen, alkyl or trifluoromethyl, C is a --(CH.sub.2).sub.m --radical, in which m is 0, 1, 2 or 3, or a branched C.sub.2 -C.sub.5 -alkylene radical, whereby a methylene radical --CH.sub.Type: GrantFiled: June 30, 1992Date of Patent: April 18, 1995Assignee: Boehringer Mannheim GmbHInventors: Ernst-Christian Witte, Karlheinz Stegmeier, Liesel Doerge
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Patent number: 5140038Abstract: The present invention provides sulphonamides of the general formula: ##STR1## wherein R.sup.1 and R.sup.2, which can be the same or different, are hydrogen or halogen atoms or C.sub.1 -C.sub.6 -alkyl, trifluoro-methyl, cyano, carboxyl, alkoxycarbonyl, aminocarbonyl, N-alkylaminocarbonyl or N,N-dialkylaminocarbonyl radicals or, when R.sup.1 and R.sup.2 are alkyl radicals ortho to one another, R.sup.1 and R.sup.2, together with the carbon atoms to which they are attached, form a saturated or unsaturated C.sub.5 -C.sub.7 -alkylene ring, R.sup.3 is a hydrogen atom, an alkyl radical containing up to 6 carbon atoms, an acyl radical, a phenylalkyl or phenylalkenyl radical, the phenyl moiety of which can be substituted by halogen, alkyl or trifluoromethyl, C is a --(CH.sub.2).sub.m -- radical, in which m is 0, 1, 2 or 3, or a branched C.sub.2 -C.sub.5 alkylene radical, whereby a methylene radical --CH.sub.Type: GrantFiled: August 31, 1989Date of Patent: August 18, 1992Assignee: Boehringer Mannheim GmbHInventors: Ernst-Christian Witte, Karlheinz Stegmeier, Liesel Doerge
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Patent number: 5037990Abstract: The present invention provides sulphonamides of the general formula: ##STR1## wherein R is a hydrogen or halogen arom, a cyano group or a C.sub.1 -C.sub.6 -alkyl or trifluoromethyl radical, n is 1, 2 or 3, m is 0 or 1 to 5, X is a valency bond, an oxygen atom, a carbonyl group or a --CHOH-- group, A is a valency bond or a carbonyl group and B is a valency bond or an --NH-- group; the physiologically acceptable salts thereof with inorganic and organic acids, as well as the optical isomers thereof.The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them.Type: GrantFiled: August 31, 1989Date of Patent: August 6, 1991Assignee: Boehringer Mannheim GmbHInventors: Hansjorg Beckh, Ernst-Christian Witte, Karlheinz Stegmeier, Leisel Doerge
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Patent number: 4997847Abstract: The invention relates to phenylsulphonamidolkanoic acids which have thromboxane A.sub.2 receptor antagonist activity.Type: GrantFiled: August 22, 1988Date of Patent: March 5, 1991Assignees: Smith Kline & French Laboratories Limited, Boehringer Mannheim GmbHInventors: Robert J. Ife, David G. Cooper, Robert A. Slater, Karlheinz Stegmeier, Ernst-Christian Witte
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Patent number: 4981873Abstract: The present invention concerns compounds of the formula: ##STR1## where R.sub.1 is an alkyl or alkenyl radical containing up to 6 carbon atoms, a cycloalkyl radical containing 3 to 7 carbon atoms, an aralkyl, aralkenyl or aryl radical in which the aryl radical or moiety can be substituted one or more times by halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, hydroxyl, trifluoromethyl, cyano, nitro, amino, C.sub.1 -C.sub.6 -alkylamino, C.sub.2 -C.sub.12 -dialkylamino, C.sub.1 -C.sub.6 -acylamino, C.sub.1 -C.sub.16 -acyl, C.sub.1 -C.sub.6 -alkylsulphenyl, -sulphinyl or -sulphonyl or by azido, R.sub.2 is hydrogen atom or a C.sub.1 -C.sub.6 -alkyl, aralkyl, aralkenyl or acyl radical, A and B are saturated or unsaturated alkylene chains containing up to 10 carbon atoms which can be substituted one or more times by C.sub.1 -C.sub.Type: GrantFiled: June 23, 1989Date of Patent: January 1, 1991Assignee: Boehringer Mannheim GmbHInventors: Ernst-Christian Witte, Karlheinz Stegmeier, Liesel Doerge, Robert A. Slater
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Patent number: 4948809Abstract: The present invention provides sulphonylphenylalkylamines of the general formula: ##STR1## wherein R.sub.1 is an alkyl radical containing up to 6 carbon atoms, a cycloalkyl radical containing 3-7 carbon atoms or an aralkyl, aralkenyl or aryl radical, the aryl moiety, in each case, being optionally substituted one or more times by halogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, hydroxyl, trifluoromethyl, cyano, nitro, amino, C.sub.1 -C.sub.6 alkylamino, C.sub.2 -C.sub.12 dialkylamino, C.sub.1 -C.sub.6 acylamino, C.sub.1 -C.sub.16 acyl or azide, R.sub.2 is a hydrogen atom, an alkyl radical containing up to 6 carbon atoms, an acyl radical or an aralkyl or aralkenyl radical, the aryl moiety, in each case, optionally being substituted one or more times by halogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, hydroxyl, trifluoromethyl, cyano, nitro, amino, C.sub.1 -C.sub.6 alkylamino, C.sub.1 -C.sub.12 dialkylamino, C.sub.1 -C.sub.6 acylamino, C.sub.1 -C.sub.Type: GrantFiled: December 5, 1988Date of Patent: August 14, 1990Assignee: Boehringer Mannheim GmbHInventors: Ernst-Christian Witte, Hans-Peter Wolff, Karlheinz Stegmeier, Johannes Pill
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Patent number: 4931462Abstract: New Sulphonamides of the formula: ##STR1## wherein R.sub.1 and R.sub.2, which can be the same or different, are hydrogen or halogen atoms, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkylthio, C.sub.1 -C.sub.6 -alkylsulphinyl, C.sub.1 -C.sub.6 -alkylsulphonyl or trifluoromethyl radicals or hydroxyl or cyano groups, R.sub.3 and R.sub.8, which can be the same or different, are hydrogen atoms, C.sub.1 -C.sub.6 -alkyl, benzyl or C.sub.1 -C.sub.6 -alkanoyl radicals, R.sub.4 and R.sub.5, which can be the same or different, are hydrogen atoms or C.sub.1 -C.sub.6 -alkyl radicals, R.sub.6 and R.sub.7 are both hydrogen atoms or together form a valency bind, X is an oxygen or sulphur atom or an .dbd.NOH or .dbd.NR.sub.8 group and n is a whole number of from 1 to 4; and the physiologically acceptable salts thereof with inorganic and organic bases.Type: GrantFiled: December 21, 1988Date of Patent: June 5, 1990Assignee: Boehringer Mannheim GmbHInventors: Walter-Gunar Friebe, Erhard Reinholz, Liesel Doerge, Karlheinz Stegmeier
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Patent number: 4711896Type: GrantFiled: February 21, 1986Date of Patent: December 8, 1987Assignee: EPIS S.A.Inventors: Jacob Bar-Tana, Ernst-Christian Witte, Bernd Hagenbruch, Johannes Pill, Karlheinz Stegmeier
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Patent number: 4609673Abstract: The present invention provides carboxylic acid derivatives of the general formula: ##STR1## wherein R is a hydrogen atom, alkyl, a metal cation or an ammonium or alkylammonium ion, R.sub.1 is a hydrogen atom, a hydroxyl group or an alkyl, O-alkyl,O-benzyl or O-acyl radical, R.sub.2 is a hydrogen atom or an alkyl, aryl or aralkyl radical, n is 0, 1 or 2 and R.sub.Type: GrantFiled: December 18, 1984Date of Patent: September 2, 1986Assignee: Boehringer Mannheim GmbHInventors: Hermann Eggerer, Bernd Hagenbruch, Tran G. Nguyen, Karlheinz Stegmeier, Johannes Pill
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Patent number: 4443477Abstract: The invention provides sulphonamides of the formula ##STR1## wherein R is a hydrogen atom or a lower alkyl radical;R.sub.1 is alkyl, aryl, aralkyl or aralkenyl, the aryl moiety of which in each case can be optionally substituted one or more times by hydroxyl, halogen, trifluoromethyl, lower alkyl or alkoxy or by acyl, carboxy or alkoxycarbonyl;n is 1, 2 or 3; andW is a valence bond or a divalent aliphatic hydrocarbon linkageand the physiologically acceptable salts, esters and amides of such compound. These compounds have excellent pharmacological lipid depressing activity and inhibit thrombocyte aggregation.Type: GrantFiled: July 7, 1982Date of Patent: April 17, 1984Assignee: Boehringer Mannheim GmbHInventors: Ernst-Christian Witte, Hans P. Wolfe, Karlheinz Stegmeier, Egon Roesch
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Patent number: 4258058Abstract: Phenoxyalkylcarboxylic acid compounds of the formula ##STR1## wherein R is hydrogen or lower alkylR.sub.1 is alkyl or aryl, aralkyl or aralkenyl radical, the aryl moiety of which can be substituted one or more times by halogen, hydroxyl, trifluoromethyl or lower alkyl, alkoxy or acylR.sub.2 and R.sub.3 are individually selected from hydrogen or lower alkyl, andn is 0, 1, 2 or 3and the physiologically acceptable salts, esters and amides thereof; are outstandingly effective in inhibiting thrombocyte aggregation.Type: GrantFiled: February 26, 1979Date of Patent: March 24, 1981Assignee: Boehringer Mannheim GmbHInventors: Ernst-Christian Witte, Hans P. Wolff, Max Thiel, Karlheinz Stegmeier, Egon Roesch
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Patent number: 4151303Abstract: Novel phenoxyalkylcarboxylic acid compounds of the formula ##STR1## wherein A is aryl, aryloxy, substituted aryl or substituted aryloxy, wherein the substituents are selected from lower alkyl, lower alkoxy, halogen and haloalkyl;B is a straight-chained or branched, saturated or unsaturated hydrocarbyl containing up to 5 carbon atoms;N is 1, 2 or 3 andR.sub.1, r.sub.2 and R.sub.3, which may be the same or different, are hydrogen or lower alkyl;And the pharmacologically compatible salts thereof; have been found to be outstandingly effective in depressing serum-lipid and triglycerides in the serum of mammals.Type: GrantFiled: September 1, 1976Date of Patent: April 24, 1979Assignee: Boehringer Mannheim GmbHInventors: Ernst-Christian Witte, Hans P. Wolff, Kurt Stach, deceased, Wolfgang Schaumann, Karlheinz Stegmeier