Patents Assigned to ASTA Pharma Aktiengesellschaft
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Patent number: 6271254Abstract: Pharmaceutical compositions and processes for their preparation containing R-&agr;-lipoic acid or S-&agr;-lipoic acid or pharmaceutically acceptable salts thereof. The pharmaceutical compositions have a cytoprotective activity and are suitable for combatting pain and inflammation.Type: GrantFiled: February 2, 1998Date of Patent: August 7, 2001Assignee: ASTA Pharma AktiengesellschaftInventors: Heinz Ulrich, Carl-Heinrich Weischer, Jürgen Engel, Helmut Hettche
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Patent number: 5998403Abstract: The present invention relates to salts of azelastine having improved solubility in water. The salts of the present invention are prepared by reacting azelastine with acetic acid, gluconic acid, lactic acid, or malic acid. The azelastine salts are effective in providing a cytoprotective effect.Type: GrantFiled: July 28, 1998Date of Patent: December 7, 1999Assignee: Asta Pharma AktiengesellschaftInventors: Helmut Hettche, Reinhard Muckenschnabel, Gerhard Scheffler, Ilona Fleischhauer, Wolfgang Morick
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Patent number: 5859003Abstract: The present invention relates to salts of azelastine having improved solubility in water. The salts of the present invention are prepared by reacting azelastine with acetic acid, gluconic acid, lactic acid or malic acid. A pharmaceutical composition may be prepared containing an azelastine salt and a pharmaceutically-acceptable carrier or diluent therefor. The pharmaceutical composition is useful in the treatment of allergies, asthma, inflammatory and psoriasis disorders and provides a cytoprotective effect.Type: GrantFiled: August 2, 1996Date of Patent: January 12, 1999Assignee: Asta Pharma AktiengesellschaftInventors: Helmut Hettche, Reinhard Muckenschnabel, Gerhard Scheffler, Ilona Fleischhauer, Wolfgang Morick
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Patent number: 5728735Abstract: Pharmaceutical compositions and processes for their preparation containing R-.alpha.-lipoic acid or S-.alpha.-lipoic acid or pharmaceutically acceptable salts thereof. The pharmaceutical compositions have a cytoprotective activity and are suitable for combatting pain and inflammation.Type: GrantFiled: February 3, 1997Date of Patent: March 17, 1998Assignee: Asta Pharma AktiengesellschaftInventors: Heinz Ulrich, Carl-Heinrich Weischer, Jurgen Engel, Helmut Hettche
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Patent number: 5334612Abstract: Pharmaceutical compositions containing at least one compound of Formula I, ##STR1## where X is a hydrogen atom or both X's represent a direct link between the two sulphur atoms; Y is hydrogen or C.sub.1 -C.sub.6 alkyl and n represents a number from 1 to 10, or their pharmaceutically acceptable salts including .alpha.-lipoic acid and dihydrolipoic acid. The pharmaceutical compositions are useful for the treatment of diseases caused by retroviruses.Type: GrantFiled: November 8, 1990Date of Patent: August 2, 1994Assignee: ASTA Pharma AktiengesellschaftInventors: Joachim Kalden, Bernhard Fleckenstein, Andreas Baur, Thomas Harrer
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Patent number: 5290769Abstract: The use of alkylphosphoric acid compounds of Formula IR--Y--PO.sub.2.sup..crclbar. --X--R.sub.1 Iwhere in Formula IR represents a saturated or unsaturated hydrocarbon radical with 12 to 24 carbon atoms or where R represents the group--CH.sub.2 --CHR.sub.3 --CH.sub.2 --Z--R.sub.4 and R.sub.3 is a C.sub.1 -C.sub.6 -alkoxy group or a C.sub.1 -C.sub.6 -alkoxymethyl group,Z represents oxygen or sulphur and R.sub.4 represents a C.sub.1 -C.sub.24 -alkyl radical,X is an oxygen atom, NH or NR.sub.2 and Y is an oxygen atom or NH, R.sub.1 is a C.sub.1 -C.sub.8 -alkyl group, or where R.sub.1 represents a C.sub.2 -C.sub.8 -alkyl group which is unsaturated and/or substituted by halogen, amino, C.sub.1 -C.sub.6 -alkylamino, di-C.sub.1 -C.sub.6 -alkylamino, tri-C.sub.1 -C.sub.6 -alkylamino, hydroxy, carboxy, C.sub.3 -C.sub.8 -cycloalkyl or phenyl for the preparation of a pharmaceutical composition for combating psoriasis disorders.Type: GrantFiled: December 22, 1992Date of Patent: March 1, 1994Assignee: Asta Pharma AktiengesellschaftInventors: Hansjorg Eibl, Clemens Unger, Jurgen Engel
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Patent number: 5271946Abstract: Azelastine-containing pharmaceutical compositions which provide controlled release of the active substance using a sustained release component. The compositions contain azelastine or a physiologically acceptable salt of azelastine, together with 0.001 to 800 parts of sustained release component for each part by weight of azelastine (calculated as base) and the release rate of azelastine is between 0.05 and 5 mg per hour.Type: GrantFiled: April 10, 1992Date of Patent: December 21, 1993Assignee: Asta Pharma AktiengesellschaftInventor: Helmut Hettche
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Patent number: 5232919Abstract: An embonic acid salt of azelastine is disclosed which does not possess the bitter taste of azelastine, and which therefore is suitable for orally administered formulations.Type: GrantFiled: October 15, 1990Date of Patent: August 3, 1993Assignee: Asta Pharma AktiengesellschaftInventors: Gerhard Scheffler, Dieter Sauerbier, Jurgen Engel
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Patent number: 5204335Abstract: Ifosfamide lyophilizate consisting substantially of ifosfamide and 0.1 to 17 parts by weight of a hexitol.Type: GrantFiled: May 21, 1991Date of Patent: April 20, 1993Assignee: Asta Pharma AktiengesellschaftInventors: Dieter Sauerbier, Uwe-Peter Dammann, Otto Isaac
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Patent number: 5084481Abstract: Pharmaceutical compositions and their preparation which contain dihydrolipoic acid or its pharmaceutically acceptable salts as active substance. The pharmaceutical compositions have a cytoprotective effect and are suitable for combatting pain and inflammatory disorders.Type: GrantFiled: February 8, 1990Date of Patent: January 28, 1992Assignee: Asta Pharma AktiengesellschaftInventors: Heinz Ulrich, Carl-Heinrich Weischer, Jurgen Engel, Helmut Hettche
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Patent number: 5068233Abstract: A medicine having a synergistic activity containing a combination of azelastine and theophylline or azelastine and at least one .beta.-mimetic.Type: GrantFiled: December 11, 1989Date of Patent: November 26, 1991Assignee: Asta Pharma AktiengesellschaftInventors: Ute Achterrath-Tuckerman, Rudolf Aurich, Jurgen Engel, Helmut Hettche, Axel Kleeman
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Patent number: 5023335Abstract: 1,2-Bis(aminomethyl)-cyclobutane-platinum complexes having an anti-tumor activity.Type: GrantFiled: September 25, 1990Date of Patent: June 11, 1991Assignee: ASTA Pharma AktiengesellschaftInventors: Wolfgang Schumacher, Johannes Respondek, Jurgen Engel, Jorg Pohl, Rainer Voegeli, Peter Hilgard
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Patent number: 4997822Abstract: There are disclosed compounds of the formula ##STR1## The compounds have antitumour and AIDS treatment activity.Type: GrantFiled: February 20, 1987Date of Patent: March 5, 1991Assignee: Asta Pharma AktiengesellschaftInventors: Hans-Jurgen Hohorst, Ludmilla Bielicki, Georg Voelcker, Ulf Niemeyer
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Patent number: 4992553Abstract: A compound of the general formula: ##STR1## wherein R.sub.1 is hydrogen, a hydroxy group or a C.sub.2 -C.sub.6 alkanoyloxy group, R.sub.2 is hydrogen or a halogen atom, R.sub.3 is hydrogen or a C.sub.1 -C.sub.6 alkyl group, R.sub.4 is a hydroxy group or a C.sub.2 -C.sub.6 alkanoyloxy group, R.sub.5 is hydrogen or a halogen atom and R.sub.6 is hydrogen or a halogen atom, Alk is a C.sub.2 -C.sub.10 alkylene chain where 4 neighboring CH.sub.2 groups may also be replaced by a 1,4-phenylene ring, A-B is the group HN--CH.sub.2 --CH.sub.2 --NH.sub.2, H.sub.2 N--CH.sub.2 --CH--CH.sub.2 --NH.sub.2 or ##STR2## and R.sub.7 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group or a phenyl radical and X stands for the equivalent of a physiologically acceptable anion. The compound is useful for the treatment of hormone dependent tumors.Type: GrantFiled: November 20, 1989Date of Patent: February 12, 1991Assignee: Asta Pharma AktiengesellschaftInventors: Erwin von Angerer, Norbert Knebel, Helmut Schonenberger, Jurgen Engel
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Patent number: 4952575Abstract: Solutions comprising oxazaphosphorins having the general formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are radicals and at least two of said radicals are 2-chloroethyl and/or 2-mathanesulfonyloxyethyl and the remaining radical is selected from hydrogen, methyl and ethyl; and about 80% to about 100% (v/v) ethanol; wherein the oxazaphosphorin concentration is about 10% to about 70% (w/v); and a process for the preparation thereof.Type: GrantFiled: February 6, 1989Date of Patent: August 28, 1990Assignee: Asta Pharma AktiengesellschaftInventors: Dieter Sauerbier, Klaus Molge, Werner Weigert, Otto Issac
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Patent number: 4923858Abstract: Compounds of the general formula: ##STR1## wherein the radicals R.sub.1 and R.sub.2 are the same or different and represent hydrogen or C.sub.1 -C.sub.6 -alkyl, the radicals R.sub.3 and R.sub.4 are the same or different and represent hydrogen, C.sub.1 -C.sub.6 -alkyl, hydroxy, C.sub.1 -C.sub.6 -alkoxy, C.sub.2 -C.sub.6 -alkanoyloxy, halogen or C.sub.2 -C.sub.6 -alkanoyl, X is oxygen, sulphur or the group --NR.sub.5 and R.sub.5 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkanoyl or benzoyl, m and n in each case may represent the integers 1, 2 or 3 and the phenyl radical A is unsubsituted or is substituted by halogen, nitro, C.sub.1 -C.sub.6 -alkyl, trifluoromethyl, C.sub.3 -C.sub.7 -cycloalkyl, hydroxy, C.sub.1 -C.sub.6 -alkoxy, C.sub.2 -C.sub.6 -alkanoyloxy, amino, C.sub.1 -C.sub.6 -alkylamino, di-C.sub.1 -C.sub.6 -alkylamino, C.sub.2 -C.sub.6 -alkanoylamino, CN, carboxy, C.sub.1 -C.sub.6 -alkoxycarbonyl, phenyl, C.sub.1 -C.sub.Type: GrantFiled: May 16, 1989Date of Patent: May 8, 1990Assignee: Asta Pharma AktiengesellschaftInventors: Jurgen Engel, Peter Emig, Bernd Nickel, Istvan Szelenyi
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Patent number: 4868175Abstract: Anti-asthmatically acting compounds of formula ##STR1## wherein R.sub.1 and R.sub.2 represent hydrogen, fluorine, chlorine, bromine, trifluoromethyl, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy and the radical A is the group ##STR2## wherein R.sub.3 is hydrogen, a phenyl radical, an indolyl-(3)-methyl radical, imidazolyl-(4)-methyl radical, a C.sub.1 -C.sub.10 -alkyl group or wherein R.sub.3 represents a C.sub.1 -C.sub.10 -alkyl group which is substituted by a carboxy group, a C.sub.1 -C.sub.6 -alkoxycarbonyl group, an aminocarbonyl group, a hydroxy group, a C.sub.1 -C.sub.6 -alkoxy group, a C.sub.2 -C.sub.6 -alkanoyl-oxy group, a mercapto group, a C.sub.1 -C.sub.6 -alkylthio group, a C.sub.2 -C.sub.6 -alkanoylmercapto group, a phenyl group, a hydroxyphenyl group, a dihydroxyphenyl group, an amino-C.sub.1 -C.sub.6 -alkylthio group, an amino-C.sub.1 -C.sub.6 -alkyloxy group, an amino group, a ureido group (H.sub.2 NCONH--) or a guanidino group or wherein R.sub.Type: GrantFiled: May 9, 1988Date of Patent: September 19, 1989Assignee: Asta Pharma AktiengesellschaftInventor: Jurgen Engle
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Patent number: 4851420Abstract: 2,6-diamino-3-halobenzylpyridines of the formula I: ##STR1## wherein R.sub.1 is fluorine and R.sub.2 is hydrogen or chlorine as well as their physiologically acceptable acid addition salts, processes for their manufacture and their use in pharmaceuticals.Type: GrantFiled: November 5, 1987Date of Patent: July 25, 1989Assignee: ASTA Pharma AktiengesellschaftInventors: Peter Emig, Juergen Engel, Gerhard Scheffler, Carl H. Weischer, Bernd Nickel
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Patent number: 4770870Abstract: Through the combined use of a 4-sulfido-oxazaphosphorine of the formula: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are hydrogen, methyl, ethyl, 2-chloroethyl or 2-methanesulfonyloxyethyl and at least two of them are taken from the group consisting of 2-chloroethyl and 2-methanesulfonyloxyethyl, R.sub.4 is hydrogen or methyl, R.sub.5 is a C.sub.2 -C.sub.6 -hydroxyalkyl group or a C.sub.2 -C.sub.6 -mercaptoalkyl group of each of these groups with an additional mercapto group, or R.sub.5 is a carboxy-C.sub.1 -C.sub.10 alkyl group, a carb-C.sub.1 -C.sub.6 -alkoxy-C.sub.1 -C.sub.10 -alkyl group, a 2-amino-2-carboxyethyl group, a 2-amine-2-carb-C.sub.1 -C.sub.6 -alkoxy-ethyl group, a 2-C.sub.2 -C.sub.6 -alkanoylamino-2-carboxyethyl group, the glutathionyl group, a C.sub.2 -C.sub.6 -sulfoalkyl group or a C.sub.2 -C.sub.6 -sulfoalkyl group which contains a mercapto group or a physiologically compatible salt thereof in combination with a thion compound of the formula:R.sub.6 SR.sub.7 IIwhere R.sub.Type: GrantFiled: March 22, 1985Date of Patent: September 13, 1988Assignee: Asta Pharma AktiengesellschaftInventors: Hans-Jurgen Hohorst, Gernot Peter, Georg Voelcker, Erhardt Wrabetz