Patents by Inventor Kurt Ponsold
Kurt Ponsold 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: 6172056Abstract: The method of prophylaxis and therapy of radical-mediated cell damage includes administering an effective amount of at least one steroid and at least one pharmaceutical adjuvant to a human being. The at least one steroid is selected from the group consisting of ent-estradiol, 17&agr;-estradiol, 8-dehydro-estradiol, 8-dehydro-17&agr;-estradiol, 8(14)-dehydroestradiol, 6,8-didehydro-17&agr;-estradiol, 6-dehydroestriol, 9(11)-dehydroestriol, 20-hydroxymethyl-3-hydroxy-19-norpregna-1,3,5(10)-triene, 14&agr;, 15&agr;-methylene-8-dehydroestradiol, 14&agr;, 15&agr;-methylene-estradiol, 2-hydroxy-estradiol-3-methyl ether, 3-hydroxy-1,3,5(10)-estratriene-17S-spirooxirane, 3-hydroxy-1,3,5(10),9(11)-estratetraene-17S-spirooxirane, and 14&bgr;,15&bgr;-methylene-8-dehydroestradiol.Type: GrantFiled: May 9, 1996Date of Patent: January 9, 2001Assignee: Jenapharm GmbH & Co. KGInventors: Peter Droescher, Bernd Menzenbach, Kurt Ponsold, Bernd Undeutsch, Michael Oettel, Wolfgang Römer, G{umlaut over (u)}nter Kaufmann, Jens Schroeder
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Patent number: 5977096Abstract: Novel substituted steroid compounds are disclosed which are more effective than known radical-trapping agents in methods of prophylaxis and therapy of radical-mediated cell damage and of treatment of diseases due to radical-mediated cell damage. The novel substituted steroid compounds can be made from steroids having an estrane, androstane, pregnane or cholestane basic skeleton and have a radical-attracting aromatic substituent of the general formula --(CH.sub.2).sub.n X, or .dbd.CH--(CH.sub.2).sub.m X at the 17 or 6 position of the steroid nucleus, wherein X=Y, OY, SY, SeY or NHY; n=0 to 5; m=n-1 and Y is a phenyl group having five substituents A, B, C, D and E, wherein A to E is independently H, alkyl, Oalkyl, Oacyl, OH, or one of the substituents B, C or D is NR.sub.2 wherein R=alkyl and each of the other substituents is hydrogen. Pharmaceutical compositions containing the novel substituted steroid compounds and methods of making them are also part of the invention.Type: GrantFiled: February 20, 1999Date of Patent: November 2, 1999Assignee: Jenapharm GmbH & Co. KGInventors: Peter Droescher, Bernd Menzenbach, Kurt Ponsold, Bernd Undeutsch, Michael Oettel, Wolfgang Romer, Gunter Kaufmann, Jens Schroder
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Patent number: 5914325Abstract: Disclosed are estrane derivatives having a radical-attracting aromatic substituent of the general formula --(CH.sub.2).sub.n X attached to the 17-position of the steroid nucleus, wherein X and n are as defined by the specification. The compounds are useful as antitumor agents and in the treatment of cardiac and circulatory disorders.Type: GrantFiled: July 8, 1996Date of Patent: June 22, 1999Assignee: Jenapharm GmbHInventors: Peter Droescher, Bernd Menzenbach, Kurt Ponsold, Bernd Undeutsch, Michael Oettel, Wolfgang Romer, Gunter Kaufmann, Jens Schroder
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Patent number: 5739125Abstract: The invention relates to 11.beta.-aryl-gona-4,9-dienes of formula I ##STR1## wherein the variables are defined in the specification. The compounds are progesterone synthesis inhibitors and are suitable for inducing labor or an abortion, and for treating endometriosis, dysmenorrhea, and endocrine hormone-dependent tumors.Type: GrantFiled: February 21, 1995Date of Patent: April 14, 1998Assignee: Schering AktiengesellschaftInventors: Helmut Kasch, Gudrun Bertram, Kurt Ponsold, Gerd Schubert, Heidemarie Rohrig, Anatoli Kurischko, Bernd Menzenbach
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Patent number: 5407928Abstract: This invention relates to 11.beta.-aryl-gona-4,9-dienes of the general formula I ##STR1## wherein the variables are defined in the specification. The compounds are progesterone antagonists and are suitable for inducing labor or an abortion.Type: GrantFiled: November 17, 1993Date of Patent: April 18, 1995Assignee: Schering AktiengesellschaftInventors: Helmut Kasch, Gudrun Bertram, Kurt Ponsold, Gerd Schubert, Heidemarie Rohrig, Anatoli Kurischko, Bernd Menzenbach
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Patent number: 5166199Abstract: 11.sym.-Aryl-16.alpha.,17.alpha.-cyclohexano-estra-4,9-dienes of formula ##STR1## wherein R.sup.1 is H or a methyl group;R.sup.2 is --OCH.sub.3, --SCH.sub.3, --N(CH.sub.3).sub.2, --NHCH.sub.3, --CN, --CHO, --COCH.sub.3 or --CHOHCH.sub.3 ;X is --CHO, --COCH.sub.3, --CH.sub.2 OH, --CHOHCH.sub.3, --CH.sub.2 CHO--C.sub.1-7 -alkyl, --CH.sub.2 CHO--C.sub.1-7 -alkanoyl, --CH.sub.2 O--C.sub.1-7 -alkyl, --CH.sub.2 O--C.sub.1-7-alkanoyl, --COO--C.sub.1-7 -alkyl, CH.sub.3 CH.sub.2 --, --CH.sub.3, --COOH or --CN; andY is .dbd.O, .dbd.NOH, .dbd.NOCH.sub.3 or a cyclic thioketal having 2 or 3 ring atomsare provided, as well as pharmaceutical compositions containing said compounds, methods of use of said compounds, and processes for their production.Type: GrantFiled: August 15, 1990Date of Patent: November 24, 1992Assignee: Schering AktiengesellschaftInventors: Helmut Kasch, Gudrun Bertram, Anatoli Kurischko, Kurt Ponsold
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Patent number: 5162312Abstract: 11.beta.-substituted-16.alpha., 17.alpha.-methylene-estra-4,9-dien-3-ones of formula I ##STR1## wherein R.sup.1 is a methyl or ethyl group;R.sup.2 is H; a C.sub.1-6 -alkyl, -alkoxymethyl, -alkanoyl or -alkoxcarbonyl group ; 2-methoxyethyl; 2-hydroxyethyl; 2-C.sub.1-4 -alkanoyloxyethyl; or a tri-C.sub.1-4 -alkylsilyl group;R.sup.3 is vinyl; a C.sub.1-6 -alkyl; or a phenyl radical para-substituted by --OCH.sub.3, --SCH.sub.3, --N(CH.sub.3), --CN, --CHO, CH.sub.3 CO--, CH.sub.3 CHOH-- or --CH.sub.2 OH;R.sup.6 is H or a C.sub.1-4 -alkyl group;X is O, a hydroxy- or methoxyimino group (.dbd.N.about.OH or --N.about.OCH.sub.3), or a cyclic thioketal with 2 or 3 carbon ring atomsare provided, as well as pharmaceutical compositions containing said compounds, methods of use of said compounds, and processes for their production.Type: GrantFiled: August 15, 1990Date of Patent: November 10, 1992Assignee: Schering AktiengesellschaftInventors: Helmut Kasch, Reimar Krieg, Anatoil Kurischko, Kurt Ponsold
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Patent number: 4248790Abstract: New gona-4,9(10)-dienes of formula I ##STR1## where R is alkyl of 1 to 3 carbon atoms and X is Cl, Br, F, N.sub.3, SCN, CN, OH, OR'(R'-alkyl), NH.sub.2, a substituted amino group or a heterocyclic compound including nitrogen in the ring. The compounds have valuable biological properties, especially hormonal and antihormonal effects, and can be used to advantage in pharmaceutical preparation, for the treatment of endocrinopathies and for reproduction control in human beings and livestock.The invention also embraces a process for making the compounds by converting 3-methoxy-13.beta.-R-gona-2,5(10)-diene-17.beta.-spiro-1,`2`-ox iranes to 17.beta.-hydroxy-17.alpha.-CH.sub.2 -13.beta.-R-gona-4,9(10)-diene-3-ones to the 17.alpha.-CH.sub.2 X-14.beta.-ols which are hydrolyzed to the 17.beta.-OH which latter are then converted to the compounds of formula I.Type: GrantFiled: February 13, 1979Date of Patent: February 3, 1981Assignee: Veb JenapharmInventors: Kurt Ponsold, Michael Hubner, Michael Oettell
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Patent number: 4231946Abstract: Compounds of the general formula ##STR1## in which R' is hydrogen or a methyl radical; R is a hydroxyl, acetoxy, arylaminocarbonyloxy, alkylaminocarbonyloxy radical;Z is hydrogen or a lower alkyl, orR and Z together are oxygen.These compounds exhibit a very favorable separation of desirable contraceptive and undesirable uterine and antigonadotrophic properties.Type: GrantFiled: June 22, 1979Date of Patent: November 4, 1980Assignee: VEB JenapharmInventors: Kurt Ponsold, Richard Prousa, Michael Oettel, Joachim Strecke, Herbert Hoffmann
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Patent number: 4167517Abstract: New gona-4,9(10)-dienes of formula I ##STR1## where R is alkyl of 1 to 3 carbon atoms and X is Cl, Br, F, N.sub.3, SCN, CN, OH, OR'(R'=alkyl), NH.sub.2, a substituted amino group or a heterocyclic compound including nitrogen in the ring. The compounds have valuable biological properties, especially hormonal and antihormonal effects, and can be used to advantage in pharmaceutical preparations for the treatment of endocrinopathies and for reproduction control in human beings and livestock.The invention also embraces a process for making the compounds by converting 3-methyoxy-13.beta.-R-gona-2,5(10)-diene-17.beta.-spiro-1',2'-o xiranes first to 17.beta.-hydroxy-17.alpha.-CH.sub.2 X-13.beta.-R-gon-5(10)-en-3-one, then to the 17.beta.-hydroxy-17.alpha.-CH.sub.2 X-13.beta.-R-gona-4,9(10)-diene-3-ones of formula I.Type: GrantFiled: July 18, 1977Date of Patent: September 11, 1979Assignee: VEB JenapharmInventors: Kurt Ponsold, Michael Hubner, Michael Oettel
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Patent number: 4029648Abstract: Gona-1,3,5(10),9(11)-tetraenes having the formula ##STR1## IN WHICH FORMULA N IS 1 OR 2,R.sup.1 is a hydrogen, hydroxy, alkoxy, or alkanoyl substituent,R.sup.2 is a hydrogen, alkoxy, acetoxy, alkyl, akenyl, or alkynyl substituent, or a substituent having the formula --CH.sub.2 X in which X is a halogen, pseudohalogen, or O-alkyl substituent, orR.sup.1 or R.sup.2 together are oxygen, or a methyleneoxy or ethylenedioxy substituent,R.sup.3 is a hydroxy, alkoxy, alkanoyl, or alkoxymethyleneoxy substituent, andR.sup.4 is a methyl or ethyl substituent,Are made from gona-1,3,5(10)trienes by electrolysis of a solution thereof in water and/or a primary or secondary alcohol in the presence of an electroconductive compound.The gona-1,3,5(10),9(11)-tetraenes are intermediates for the production of steroidal pharmaceuticals for fertility control in human and animal therapeutics.Type: GrantFiled: January 15, 1976Date of Patent: June 14, 1977Assignee: VEB JenapharmInventors: Kurt Ponsold, Helmut Kasch