Patents by Inventor Christine Griffoul

Christine Griffoul 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).

  • Process for the preparation of biphenyl derivatives
    Patent number: 5633400
    Abstract: The invention relates to a process for the preparation of a compound of the formula (I) ##STR1## in which X is an optionally protected formyl group andR is a group which is itself inert to the reaction conditions of the synthesis,which comprises reacting a compound of the formula (II) ##STR2## where X is as defined above, with a substituted phenyl-halogen compound of the formula (III) ##STR3## where the substituent Hal is a halogen group and R is as defined above.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: May 27, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Adalbert Wagner, Neerja Bhatnagar, Jean Buendia, Christine Griffoul
  • Process for the preparation of biphenyl derivatives
    Patent number: 5618975
    Abstract: Biphenyl derivatives and processes for the preparation of biphenyl derivatives are described. A compound of formula (I) is disclosed ##STR1## in which the substituent X is --CHO or --CH(OR.sup.1)OR.sup.2, where R.sup.1 and R.sup.2 independently of one another are (C.sub.1 -C.sub.6)-alkyl or R.sup.1 and R.sup.2 together are an alkylene group (--CH.sub.2).sub.n --, where n is 2, 3 4 or 5 and R is --F, --Cl, --NO.sub.2, --(CH.sub.2).sub.m --COOR.sup.3, --(CH.sub.2).sub.m --CONHR.sup.3, --(CH.sub.2).sub.m --CN, --SO.sub.2 NH--COOR.sup.3, --SO.sub.2 NH--CO--NHR.sup.3, --SO.sub.2 NH--SO.sub.2 --R.sup.3, --NHSO.sub.2 R.sup.3, ##STR2## --PO.sub.3 R.sup.3, --NH--SO.sub.2 --CF.sub.3, --SO.sub.2 NR.sup.4 where R.sup.3 is hydrogen, (C.sub.1 -C.sub.6)-alkyl, (C.sub.3 -C.sub.6)cycloalkyl, or (C.sub.1 -C.sub.6)-alkyl-(C.sub.3 -C.sub.6)cycloalkyl and R.sup.4 is a group .dbd.C--N(CH.sub.3).sub.2, and m is 0, 1, 2, 3, or 4.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: April 8, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Adalbert Wagner, Neerja Bhatnagar, Jean Buendia, Christine Griffoul
  • Process for the preparation of 1-[(1,1'-biphenyl]-4-YL]-methyl-1H-imidazole-5-carboxylic acids
    Patent number: 5527919
    Abstract: A novel process for the preparation of a compound of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are defined in the text.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: June 18, 1996
    Assignee: Roussel Uclaf
    Inventors: Neerja Bhatnagar, Jean Buendia, Christine Griffoul, Holger Heitsch, Adalbert Wagner
  • Process
    Patent number: 5493046
    Abstract: The novel process of the invention for the preparation of a compound of the formula ##STR1##
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: February 20, 1996
    Assignee: Roussel-Uclaf
    Inventors: Neerja Bhatnagar, Jean Buendia, Christine Griffoul
  • Process for the preparation of biphenyl-imidazole derivatives
    Patent number: 5391732
    Abstract: A novel process for the preparation of a compound of the formula ##STR1##
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: February 21, 1995
    Assignee: Roussel-Uclaf
    Inventors: Neerja Bhatnagar, Jean Buendia, Christine Griffoul
  • Hydrosoluble coumarin derivatives, their preparation and their use as an enzyme substrate or for the preparation of such substrates
    Patent number: 5342970
    Abstract: The invention relates to hydrosoluble coumarin derivatives. These derivatives comply with the formula: ##STR1## in which R.sup.1 represents ##STR2## with m=1 to 30 and in which R.sup.7 can be a hydrogen atom or various groups, R.sup.2 to R.sup.6 can be different substituents, particularly substituents making it possible to introduce into the derivative an appropriate group as the enzyme substrate or for the synthesis of enzyme substrates.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: August 30, 1994
    Assignee: Laboratoires Eurobio
    Inventors: Joseph Chalom, Christine Griffoul, Michel Tod, Stephane Reveilleau