Patents by Inventor Karl-Heinrich Fritzemeier

Karl-Heinrich Fritzemeier 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: 6229029
    Abstract: This invention describes 11&bgr;-aryl-substituted 14,17-ethanoestratrienes of general formula (I). The new compounds are selective estrogens whose action occurs in a tissue-selective manner. The estrogenic action occurs in particular on bone, in the cardiovascular system and in the CNS (central nervous system). Only a slight estrogenic action or no estrogenic action occurs in the uterus and in the liver, however. The compounds are suitable for the production of pharmaceutical agents for use in numerous indications (for example for hormone replacement therapy, prevention and treatment of osteoporosis).
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: May 8, 2001
    Assignee: Schering Aktiengesellschaft
    Inventors: Rolf Bohlmann, Karl Heinrich Fritzemeier, Christa Hegele-Hartung, Rudolf Knauthe, Karsten Parzcyk
  • Patent number: 6166075
    Abstract: This invention relates to new antiestrogens of the general formula ##STR1## in which the substituents have the meanings that are explained in more detail in the description.The new compounds are a) pure antiestrogens or b) antiestrogens with partial estrogenic action (tissue-selective estrogens).Based on these properties, the new compounds are suitable for the production of pharmaceutical agents: in the case of a), for example, for the treatment of breast cancer; in the case of b), for example, for hormone replacement therapy.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: December 26, 2000
    Assignee: Schering Aktiengesellschaft
    Inventors: Ulrich Klar, Rolf Bohlmann, Karsten Parczyk, Karl-Heinrich Fritzemeier, Monika Lessl, Rosemarie Lichtner
  • Patent number: 6147065
    Abstract: Described are 14,17-C.sub.2 -bridged steroids of the formula (I) defined in the specification. The compounds are available, even after peroral administration, with high gestagenic action and are suitable for the production of pharmaceutical agents.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: November 14, 2000
    Assignee: Schering Aktiengesellschaft
    Inventors: Klaus Schollkopf, Wolfgang Halfbrodt, Joachim Kuhnke, Wolfgang Schwede, Karl-Heinrich Fritzemeier, Rolf Krattenmacher, Hans-Peter Muhn
  • Patent number: 5973172
    Abstract: The invention describes 14,17-C.sub.2 -bridged steroids of general formula (I), ##STR1## wherein the various R groups are as defined in the specification, and wherein said steroids are in contrast, with the disclaimed compound, the new compounds are available even after peroral administration with high gestagenic action and are suitable for the production of pharmaceutical agents.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: October 26, 1999
    Assignee: Schering Akitengesellschaft
    Inventors: Klaus Schollkopf, Wolfgang Halfbrodt, Joachim Kuhnke, Wolfgang Schwede, Karl-Heinrich Fritzemeier, Rolf Krattenmacher, Hans-Peter Muhn
  • Patent number: 5827842
    Abstract: The invention describes 14,17-C.sub.2 -bridged steroids of general formula (I), ##STR1## wherein the various R groups are as defined in the specification, and wherein said steroids are, in contrast with the disclaimed compound 14,17-ethano-19-norpregn-4-ene-3,20-dione bioavailable even after peroral administration with high gestagenic action and are suitable for the production of pharmaceutical agents.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: October 27, 1998
    Assignee: Schering Aktiengesellschaft
    Inventors: Klaus Schollkopf, Wolfgang Halfbrodt, Joachim Kuhnke, Wolfgang Schwede, Karl-Heinrich Fritzemeier, Rolf Krattenmacher, Hans-Peter Muhn
  • Patent number: 5703066
    Abstract: In this invention, the new etheno- and ethano-19,11-bridged 4-estrenes of general formula I ##STR1## are described, in whichW, R.sup.1, R.sup.2, R.sup.6a, R.sup.6b, R.sup.7, R.sup.14, R.sup.15, R.sup.16, R.sup.11, R.sup.11' and R.sup.19 have the meaning indicated in the description, as well as a process for their production.The new compounds have strong progestational activity and are suitable for the production of pharmaceutical agents.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 30, 1997
    Assignee: Schering Aktiengesellschaft
    Inventors: Eckhard Ottow, Wolfgang Schwede, Wolfgang Halfbrodt, Karl-Heinrich Fritzemeier, Rolf Krattenmacher
  • Patent number: 5656622
    Abstract: New 15,15-dialkyl-substituted derivatives of the estradiol of general formula I ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are each a hydrogen atom or a straight-chain alkanoyl group with 1 to 10 carbon atoms, a branched-chain alkanoyl group with 3-10 carbon atoms, an alkanoyl group of 3-10 carbon atoms containing a cycloaliphatic structure of 3-6 carbon ring atoms or a benzoyl group, andR.sup.3 and R.sup.4, independently of one another, are each a straight-chain alkyl group with 1 to 10 carbon atoms or a branched-chain alkyl group with 3 to 10 carbon atoms,are described, a process for their production and initial products for this process. The new compounds have--also after oral administration--high estrogenic effectiveness and are suitable for the production of pharmaceutical agents.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 12, 1997
    Assignee: Schering Aktiengesellschaft
    Inventors: James Ronald Bull, Karl-Heinrich Fritzemeier, Christa Hegele-Hartung
  • Patent number: 5523298
    Abstract: In this invention, the new etheno- and ethano-19,11-bridged 4-estrenes of general formula I ##STR1## are described, in which W, R.sup.1, R.sup.2, R.sup.6a, R.sup.6b, R.sup.7, R.sup.14, R.sup.15, R.sup.16, R.sup.11, R.sup.11' and R.sup.19 have the meaning indicated in the description, as well as a process for their production.The new compounds have strong progestational activity and are suitable for the production of pharmaceutical agents.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: June 4, 1996
    Assignee: Schering Aktiengesellschaft
    Inventors: Eckhard Ottow, Wolfgang Schwede, Wolfgang Halfbrodt, Karl-Heinrich Fritzemeier, Rolf Krattenmacher
  • Patent number: 5491137
    Abstract: 14.alpha.,17.alpha.-(Propano-and 17.sup.2 -propeno)-estratrienes of general formula I ##STR1## in which R.sup.1 means a hydrogen atom, a methyl or an acyl group with 1-12 carbon atoms,R.sup.2 means a hydrogen atom or an acyl group with 1-12 carbon atoms and ##STR2## a C--C single or double bond. The new compounds of general formula I are estrogen effective just as ethinyl estradiol.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: February 13, 1996
    Assignee: Schering Aktiengesellschaft
    Inventors: James R. Bull, Walter Elger, Karl-Heinrich Fritzemeier, Rolf Krattenmacher
  • Patent number: 5418227
    Abstract: 14,16.beta.-Ethano-15.beta.,16.sup.1 -cyclo-14.beta.-estra-1,3,5(10)-trienes of general formula I ##STR1## in which R.sup.1 means a hydrogen atom, a C.sub.1 to C.sub.9 alkyl or C.sub.1 to C.sub.9 acyl radical,R.sup.2 means a hydrogen atom, a C.sub.1 to C.sub.9 alkyl radical, a C.sub.2 to C.sub.9 alkenyl or alkinyl radical andR.sup.3 means a hydroxy group or a C.sub.1 to C.sub.9 acyloxy radical, as well as a process for their production are described. The new compounds have high (peroral) effectiveness and are suitable for the production of pharmaceutical agents.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: May 23, 1995
    Assignee: Schering Aktiengesellschaft
    Inventors: James R. Bull, Walter Elger, Krzysztof Chwalisz, Karl-Heinrich Fritzemeier
  • Patent number: 5389624
    Abstract: [3,2-c]Pyrazole and [3,2-d]triazole steroids are useful anti-androgens.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: February 14, 1995
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Hofmeister, Dieter Bittler, Horst Michna, Ursula Habenicht, Karl-Heinrich Fritzemeier, Yukishige Nishino
  • Patent number: 5236912
    Abstract: [3,2-c]Pyrazole and [3,2-d]triazole steroids are useful anti-androgens.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: August 17, 1993
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Hofmeister, Dieter Bittler, Horst Michna, Ursula Habenicht, Karl-Heinrich Fritzemeier, Yukishige Nishino
  • Patent number: 5232915
    Abstract: 9.alpha.-Hydroxy-19,11.beta.-bridged steroids of general formula I ##STR1## are described. The more detailed meaning of A, B, R.sup.1, R.sup.2, G, Z, R.sup.4 --Y and R.sup.4' --Y' follows from the description. The steroids of general formula I have antigestagen and/or antiglucocorticoidal action and can be used for the production of pharmaceutical agents.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: August 3, 1993
    Assignee: Schering Aktiengesellschaft
    Inventors: Eckhard Ottow, Gunter Neef, Rudolf Wiechert, Walter Elger, Sybille Beier, Karl-Heinrich Fritzemeier