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).

  • Patent number: 5824679
    Abstract: 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: Grant
    Filed: February 28, 1997
    Date of Patent: October 20, 1998
    Assignee: Boehringer Mannheim GmbH
    Inventors: Wolfgang Von Der Saal, Herbert Leinert, Karlheinz Stegmeier
  • Patent number: 5795892
    Abstract: 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: Grant
    Filed: February 28, 1997
    Date of Patent: August 18, 1998
    Assignee: Boehringer Manneim GmbH
    Inventors: Wolfgang Von Der Saal, Reinhard Heck, Ralf Kucznierz, Herbert Leinert, Karlheinz Stegmeier
  • Patent number: 5641810
    Abstract: 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: Grant
    Filed: January 25, 1995
    Date of Patent: June 24, 1997
    Assignee: Boehringer Mannheim GmbH
    Inventors: Johannes Pill, Liesel Doerge, Karlheinz Stegmeier
  • Patent number: 5446065
    Abstract: 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: Grant
    Filed: June 21, 1993
    Date of Patent: August 29, 1995
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Hansjorg Beckh, Karlheinz Stegmeier, Liesel Doerge
  • Patent number: 5407951
    Abstract: 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: Grant
    Filed: June 30, 1992
    Date of Patent: April 18, 1995
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Karlheinz Stegmeier, Liesel Doerge
  • Patent number: 5140038
    Abstract: 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: Grant
    Filed: August 31, 1989
    Date of Patent: August 18, 1992
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Karlheinz Stegmeier, Liesel Doerge
  • Patent number: 5037990
    Abstract: 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: Grant
    Filed: August 31, 1989
    Date of Patent: August 6, 1991
    Assignee: Boehringer Mannheim GmbH
    Inventors: Hansjorg Beckh, Ernst-Christian Witte, Karlheinz Stegmeier, Leisel Doerge
  • Patent number: 4997847
    Abstract: The invention relates to phenylsulphonamidolkanoic acids which have thromboxane A.sub.2 receptor antagonist activity.
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: March 5, 1991
    Assignees: Smith Kline & French Laboratories Limited, Boehringer Mannheim GmbH
    Inventors: Robert J. Ife, David G. Cooper, Robert A. Slater, Karlheinz Stegmeier, Ernst-Christian Witte
  • Patent number: 4981873
    Abstract: 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: Grant
    Filed: June 23, 1989
    Date of Patent: January 1, 1991
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Karlheinz Stegmeier, Liesel Doerge, Robert A. Slater
  • Patent number: 4948809
    Abstract: 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: Grant
    Filed: December 5, 1988
    Date of Patent: August 14, 1990
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Hans-Peter Wolff, Karlheinz Stegmeier, Johannes Pill
  • Patent number: 4931462
    Abstract: 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: Grant
    Filed: December 21, 1988
    Date of Patent: June 5, 1990
    Assignee: Boehringer Mannheim GmbH
    Inventors: Walter-Gunar Friebe, Erhard Reinholz, Liesel Doerge, Karlheinz Stegmeier
  • Patent number: 4711896
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: December 8, 1987
    Assignee: EPIS S.A.
    Inventors: Jacob Bar-Tana, Ernst-Christian Witte, Bernd Hagenbruch, Johannes Pill, Karlheinz Stegmeier
  • Patent number: 4609673
    Abstract: 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: Grant
    Filed: December 18, 1984
    Date of Patent: September 2, 1986
    Assignee: Boehringer Mannheim GmbH
    Inventors: Hermann Eggerer, Bernd Hagenbruch, Tran G. Nguyen, Karlheinz Stegmeier, Johannes Pill
  • Patent number: 4443477
    Abstract: 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: Grant
    Filed: July 7, 1982
    Date of Patent: April 17, 1984
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Hans P. Wolfe, Karlheinz Stegmeier, Egon Roesch
  • Patent number: 4258058
    Abstract: 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: Grant
    Filed: February 26, 1979
    Date of Patent: March 24, 1981
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Hans P. Wolff, Max Thiel, Karlheinz Stegmeier, Egon Roesch
  • Patent number: 4151303
    Abstract: 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: Grant
    Filed: September 1, 1976
    Date of Patent: April 24, 1979
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Hans P. Wolff, Kurt Stach, deceased, Wolfgang Schaumann, Karlheinz Stegmeier