Patents by Inventor Kai-Uwe Schoning

Kai-Uwe Schoning 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: 7019161
    Abstract: The present invention relates to novel processes for the preparation of optically active 3-aminocarboxylic acids and their esters, in particular processes for the preparation of optically active compounds of the formula IA or IB as free bases or as acid addition salts thereof, in which the radicals are as defined in the description; in particular using the catalytic hydrogenation of olefinic precursors in the presence of platinum on alumina as a catalyst and the removal of chiral auxiliary groups from salt precursors; and novel process sections in the route for their synthesis, and processes for the preparation of biologically, in particular pharmacologically, active compounds, which comprise the novel processes.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: March 28, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Kai-Uwe Schöning, Martin Studer, Hans Jürg Kirner, Stephan Burkhardt
  • Patent number: 7005281
    Abstract: The invention relates to a process for preparing organosilicon group containing photoinitiators of the formula (I), wherein m is a number from 1 to 200; q is 0 or 1; A is IN-C(O)—O—CHR3—Y— or IN-C(O)—NH—CHR3—Y—; A? is A or R1?; R1 and R1?, R2 and R2? are C1–C18alkyl or phenyl, or —(O)q—SiR1R1?R2; R3 is hydrogen or C1–C6alkyl, Y is a divalent group selected from C1–C10alkeylene, C2–C10alkenylene or —(CH2)b—O—(CH2)a—; and b are each independently of the other a number of 1 to 6; IN is a photolabile functional moiety of the formula (II) or (III), wherein R4 is hydrogen or —C(O)—C(O)—OH or —C(O)—C(O)—OC1–C6alkyl and n is 1–3; R5 and R6 are C1–C12alkyl or together are cycloC5–C7alkyl; R7 is hydroxy, C1–C6alkoxy or morpholinyl; X is —(CH2)a—, —(CH2)b—O—(CH2)a— or —(CH2)b—O—CO—(CH2)a—; a and b are each independently of the other a number of 1 to 6; whereby the process is characterized in that a photolabile functional moiety containing a carboxy group (IN-COOH) or an alkoxycarbonyl group (IN-CO—OC1–C6alkyl) is reacte
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: February 28, 2006
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Reinhold Öhrlein, Kai-Uwe Schöning, Gabriele Baisch, Jemima Schmidt, Gisèle Baudin, Tunja Jung
  • Publication number: 20050124820
    Abstract: The invention relates to a process for preparing organosilicon group containing photoinitiators of the formula (I), wherein m is a number from 1 to 200; q is 0 or 1; A is IN—C(O)—O—CHR3—Y— or IN—C(O)—NH—CHR3—Y—; A? is A or R1?; R1 and R1?, R2 and R2? are C1-C18alkyl or phenyl, or —(O)q—SiR1R1?R2; R3 is hydrogen or C1-C6alkyl, Y is a divalent group selected from C1-C10alkeylene, C2-C10alkenylene or —(CH2)b—O—(CH2)a—; and b are each independently of the other a number of 1 to 6; IN is a photolabile functional moiety of the formula (II) or (III), wherein R4 is hydrogen or —C(O)—C(O)—OH or —C(O)—C(O)—OC1-C6alkyl and n is 1-3; R5 and R6 are C1-C1-2alkyl or together are cycloC5-C7alkyl; R7 is hydroxy, C1-C6alkoxy or morpholinyl; X is —(CH2)a—, —(CH2)b—O—(CH2)a— or —(CH2)b—O—CO—(CH2)a—; a and b are each independently of the other a number of 1 to 6; whereby the process is characterized in that a photolabile functional moiety containing a carboxy group (IN—COOH) or an alkoxycarbonyl group (IN—CO—OC1-C6alkyl) is react
    Type: Application
    Filed: February 25, 2003
    Publication date: June 9, 2005
    Inventors: Reinhold Ohrlein, Kai-Uwe Schoning, Gabriele Baisch, Jemima Schmidt, Gisele Baudin, Tunja Jung
  • Publication number: 20040220255
    Abstract: The present invention is directed to new crystalline forms of Atorvastatin calcium (2:1), referred to hereinafter as polymorphic Forms X, A, B1, B2, C, D and E. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and pharmaceutical compositions comprising the crystalline forms.
    Type: Application
    Filed: June 2, 2004
    Publication date: November 4, 2004
    Inventors: Paul Adriaan Van Der Schaaf, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schoning
  • Publication number: 20030149270
    Abstract: The present invention relates to novel processes for the preparation of optically active 3-aminocarboxylic acids and their esters, in particular processes for the preparation of optically active compounds of the formula IA or IB 1
    Type: Application
    Filed: December 6, 2002
    Publication date: August 7, 2003
    Inventors: Kai-Uwe Schoning, Martin Studer, Hans Jurg Kirner, Stephan Burkhardt
  • Publication number: 20030114686
    Abstract: The present invention is directed to new crystalline forms of Atorvastatin calcium (2:1), referred to hereinafter as polymorphic Forms X, A, B1, B2, C, D and E. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and pharmaceutical compositions comprising the crystalline forms.
    Type: Application
    Filed: October 7, 2002
    Publication date: June 19, 2003
    Inventors: Paul Adriaan Van Der Schaaf, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schoning