Patents by Inventor Jean-Marie Cassal

Jean-Marie Cassal 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: 6133442
    Abstract: Compounds of formula I ##STR1## wherein R.sup.1 signifies phenyl, substituted phenyl or heterocyclyl;R.sup.2 signifies phenyl or substituted phenyl;R.sup.3 signifies hydrogen, lower-alkyl, cyano, carboxy, esterified carboxy, phenyl, substituted phenyl, heterocyclyl or a residue --CONR.sup.5 R.sup.6 or --NR.sup.5 COR.sup.7 ;R.sup.4 signifies hydrogen or lower-alkyl;R.sup.5 signifies hydrogen or a residue R.sup.7, andR.sup.6 signifies --(CH.sub.2).sub.m R.sup.7 ; orR.sup.5 and R.sup.6 together with the N atom associated with them signify a heterocyclic residue;R.sup.7 signifies phenyl, substituted phenyl, cycloalkyl, heterocyclyl, lower-alkyl, cyano-lower-alkyl, hydroxy-lower-alkyl, di-lower-alkylamino-lower-alkyl, carboxy-lower-alkyl, lower-alkoxycarbonyl-lower-alkyl, lower-alkoxycarbonylamino-lower-alkyl or phenyl-lower-alkoxycarbonyl;R.sup.a signifies hydrogen, lower-alkyl or hydroxy;R.sup.b signifies hydrogen or lower-alkyl;Z signifies hydroxy, amino or a residue --OR.sup.8, --OC(O)NHR.sup.8, --OC(O)OR.sup.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: October 17, 2000
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Volker Breu, Kaspar Burri, Jean-Marie Cassal, Martine Clozel, Georges Hirth, Bernd-Michael Loffler, Marcel Muller, Werner Neidhart, Henri Ramuz
  • Patent number: 6004965
    Abstract: Compounds of the formula: ##STR1## where A, B, R.sup.1 -R.sup.8 are as described herein are endothelin inhibitors that can be used in treating diseases associated with endothelin, such as high blood pressure. Chemical synthesis of these compounds and pharmaceutical compositions containing these compounds are also useful.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: December 21, 1999
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Volker Breu, Kaspar Burri, Jean-Marie Cassal, Martine Clozel, Georges Hirth, Bernd-Michael Loffler, Marcel Muller, Werner Neidhart, Henri Ramuz
  • Patent number: 5962682
    Abstract: Compounds of formula (I) ##STR1## wherein R.sup.1 signifies phenyl, substituted phenyl or heterocyclyl; R.sup.2 signifies phenyl or substituted phenyl; R.sup.3 signifies hydrogen, lower-alkyl, cyano, carboxy, esterified carboxy, phenyl, substituted phenyl, heterocyclyl or a residue --CONR.sup.5 R.sup.6 or --NR.sup.5 COR.sup.7 ; R.sup.4 signifies hydrogen or lower-alkyl; R.sup.5 signifies hydrogen or a residue R.sup.7, and R.sup.6 signifies --(CH.sub.2).sub.m R.sup.7 ; or R.sup.5 and R.sup.6 together with the N atom associated with them signify a heterocyclic residue; R.sup.7 signifies phenyl, substituted phenyl, cycloalkyl, heterocyclyl, lower-alkyl, cyano-lower-alkyl, hydroxy-lower-alkyl, di-lower-alkylamino-lower-alkyl, carboxy-lower-alkyl, lower-alkoxycarbonyl-lower-alkyl, lower-alkoxycarbonylamino-lower-alkyl or phenyl-lower-alkoxycarbonyl; R.sup.a signifies hydrogen, lower-alkyl or hydroxy; R.sup.b signifies hydrogen or lower-alkyl; Z signifies hydroxy, amino or a residue --OR.sup.8, --OC(O)NHR.sup.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: October 5, 1999
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Volker Breu, Kaspar Burri, Jean-Marie Cassal, Martine Clozel, Georges Hirth, Bernd-Michael Loffler, Marcel Muller, Werner Neidhart, Henri Ramuz
  • Patent number: 5856484
    Abstract: Compounds of formula I: ##STR1## are disclosed. The compounds inhibit the binding of endothelin to its receptors.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: January 5, 1999
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Volker Breu, Kaspar Burri, Jean-Marie Cassal, Martine Clozel, Georges Hirth, Bernd-Michael Loffler, Marcel Muller, Werner Neidhart, Henri Ramuz
  • Patent number: 5837708
    Abstract: Compounds of the formula ##STR1## wherein the variables are hereinbelow defined. The compounds of formula I are inhibitors for endothelin receptors. They can be used for the treatment of disorders which are associated with endothelin activities, especially circulatory disorders such as hypertension, ischaemia, vasospasms and angina pectoris.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: November 17, 1998
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Volker Breu, Kaspar Burri, Jean-Marie Cassal, Martine Clozel, Georges Hirth, Bernd-Michael Loffler, Marcel Muller, Werner Neidhart, Henri Ramuz
  • Patent number: 5541186
    Abstract: A compound of the formula ##STR1## wherein R.sup.1 to R, R.sup.a, R.sup.b X, Y, Z, m and n have the significance given in the description, can be used as medicaments, especially for the treatment and prophylaxix of conditions which are associated with endothelin activities.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: July 30, 1996
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Volker Breu, Kaspar Burri, Jean-Marie Cassal, Martine Clozel, Georges Hirth, Bernd-Michael L offler, Marcel M uller, Werner Neidhart, Henri Ramuz
  • Patent number: 5420129
    Abstract: The invention is concerned with novel sulphonamides and their use as medicaments. In particular, the invention is concerned with compounds of the formula ##STR1## wherein R.sup.1 is hydrogen, lower-alkyl, lower-alkoxy, lower-alkylthio, halogen or trifluoromethyl;R.sup.2 is hydrogen, lower-alkyl, halogen, lower-alkoxy, trifluoromethyl or --OCH.sub.2 COOR.sup.9 ;R.sup.3 is hydrogen, lower-alkyl, halogen, lower-alkylthio, trifluoromethyl, lower-alkoxy or trifluoromethoxy;R.sup.2 and R.sup.3 together are butadienyl, methylenedioxy, ethylenedioxy or isopropylidenedioxy;R.sup.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: May 30, 1995
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Volker Breu, Kaspar Burri, Jean-Marie Cassal, Martine Clozel, Georges Hirth, Bernd-Michael Loffler, Marcel Muller, Werner Neidhart, Henri Ramuz
  • Patent number: 5215972
    Abstract: Steroids of the formula ##STR1## wherein R.sup.1 to R.sup.4, X and n have the significance given in the description, which lower the intestinal resorption of cholesterol and plasma cholesterol and a process of making same from corresponding steroids having an alcohol residue of the formula --O--X--OH in the 3-position.
    Type: Grant
    Filed: May 1, 1992
    Date of Patent: June 1, 1993
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Jean-Marie Cassal, Nigel Gains, Eva-Maria Gutknecht, Georges Hirth, Hans Lengsfeld
  • Patent number: 5187293
    Abstract: Glycerine derivatives of the formula ##STR1## wherein the residues R.sup.1, R.sup.2 and R.sup.3 have the significance given in the description, and their hydrates, which inhibit blood platelet activating factor (PAF), are described.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: February 16, 1993
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Richard Barner, Kaspar Burri, Jean-Marie Cassal, Paul Hadvary, Georges Hirth, Klaus Muller
  • Patent number: 5057530
    Abstract: Glycerol derivatives of the formula ##STR1## wherein one of the residues R.sup.1, R.sup.2 and R.sup.3 is a group U of the formula OY.sup.1 or --X.sup.1 --CO--(A.sup.1).sub.n --Z.sup.1, another residue is a group V of the formula OY.sup.2 or --X.sup.2 --CO--(A.sup.2).sub.p --Z.sup.2, and the remaining residue is a group W of the formula --X.sup.3 T--(C.sub.2-6 -alkylene)-N.sup.+ R A.sup.- in which one of X.sup.1, X.sup.2 and X.sup.3 is oxygen or NQ.sup.1 and the other two are oxygen and the remaining symbols have the significance given below, and their hydrates are described and are prepared by introducing or generating the residues R.sup.1, R.sup.2 and R.sup.3 in corresponding glycerol derivatives.The compounds of formula I are active as inhibitors of blood platelet activating factor or as inhibitors of the growth of tumors.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: October 15, 1991
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Richard Barner, Kaspar Burri, Jean-Marie Cassal, Paul Hadvary, Georges Hirth, Klaus Muller
  • Patent number: 4863941
    Abstract: Glycerol derivatives of the formula ##STR1## wherein one of the residues R.sup.1, R.sup.2 and R.sup.3 is a group U of the formula OY.sup.1 or --X.sup.1 --CO--(A.sup.1).sub.n --Z.sup.1, another residue is a group V of the formula OY.sup.2 or --X.sup.2 --CO--(A.sup.2).sub.p --Z.sup.2, and the remaining residue is a group W of the formula --X.sup.3 T--(C.sub.2-6 -alkylene)-N.sup.+ R A.sup.- in which one of X.sup.1, X.sup.2 and X.sup.3 is oxygen or NQ.sup.1 and the other two are oxygen and the remaining symbols have the significance given below, and their hydrates are described and are prepared by introducing or generating the residues R.sup.1, R.sup.2 and R.sup.3 in corresponding glycerol derivatives.The compounds of formula I are active as inhibitors of blood platelet activating factor or as inhibitors of the growth of tumors.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: September 5, 1989
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Richard Barner, Kaspar Burri, Jean-Marie Cassal, Paul Hadvary, Georges Hirth, Klaus Muller
  • Patent number: 4731373
    Abstract: Glycerine derivatives of the formula ##STR1## wherein the residues R.sup.1, R.sup.2 and R.sup.3 have the significance given in the description,and their hydrates, which inhibit blood platelet activating factor (PAF), are descried.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: March 15, 1988
    Assignee: Hoffman-La Roche Inc.
    Inventors: Richard Barner, Kasper Burri, Jean-Marie Cassal, Paul Hadvary, Georges Hirth, Klaus Muller
  • Patent number: 4692450
    Abstract: Polycyclic salts of the formulaA.sup.- XN.sup.+ CH.sub.2 --(Y).sub.n --(CH.sub.2).sub.p --(Z).sub.q --L--(T).sub.r --M IwhereinA.sup.- is the anion of a strong organic or inorganic acid;XN.sup.+ is pyridinium, pyrimidinium, thiazolium or imidazolium substituted by R.sup.1, R.sup.2 and R.sup.3 ;n, q and r individually are the integer 1 or 0 and p is an integer from 1 to 15;Y is CH.sub.2, C(H,OH) or C(O);Z is O, S, CH.sub.2, C(O), NQ.sup.1, SO.sub.2, C(O)O, OC(O), C(O)N(Q.sup.1) or N(Q.sup.1)C(O);L is p-phenylene substituted by R.sup.4 ; andM is phenyl substituted by R.sup.5 and R.sup.6,T has one of the meanings given above, for Z or is C(CH.sub.3).sub.2, C.sub.2 H.sub.4, C(Q.sup.2).dbd.C(Q.sup.3), C.tbd.C, CH.sub.2 C(O), C(O)CH.sub.2, CH.sub.2 O or OCH.sub.2,R.sup.1 is a group Ar, Ar--C.sub.1-4 -alkyl, ArO or Arc(O),Ar is phenyl substituted by R.sup.7, R.sup.8 and R.sup.9 ;R.sup.2 and R.sup.3 individually are H, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy or C.sub.6 H.sub.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: September 8, 1987
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Jean-Marie Cassal, Albrecht Edenhofer, Henri Ramuz
  • Patent number: 4680290
    Abstract: Steroids of the formula ##STR1## wherein n represents the number 2, 3 or 4; R.sup.1 represents hydrogen, lower-alkyl or lower-alkylidene; R.sup.2, R.sup.3 and R.sup.4 represent hydrogen or lower-alkyl and the dotted C--C bonds in the 5(6)-, 7(8)-, 22(23)-, 24(28)- and 25(26)-position are optional, whereby the B-ring can contain only one double bond and the side-chain is either saturated or is mono-unsaturated or is di-unsaturated in the 22(23), 25(26)-position; and whereby R.sup.1 is lower-alkyl or lower-alkylidene when a 5(6)-double bond is present, n is 2 and R.sup.2, R.sup.3 and R.sup.4 are methyl,and pharmaceutically acceptable salts of these steroids have activity inhibiting the intestinal resorption of cholesterol. They can be manufactured from steroids which are otherwise substituted in the 3.beta.-position.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: July 14, 1987
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Jean-Marie Cassal
  • Patent number: 4675328
    Abstract: Polycyclic salts of the formulaA-XN+CH.sub.2 --(Y).sub.n --(CH.sub.2).sub.p --(Z).sub.q --L--(T).sub.r --M IwhereinA.sup.- is the anion of a strong organic or inorganic acid;XN.sup.+ is pyridinium, pyrimidinium, thiazolium or imidazolium substituted by R.sup.1, R.sup.2 and R.sup.3 ;n, q and r individually are the integer 1 or 0 and p is an integer from 1 to 15;Y is CH.sub.2, C(H,OH) or C(O):Z is O, S, CH.sub.2, C(O), NQ.sup.1, SO.sub.2, C(O)O, OC(O), C(O)N(Q.sup.1) or N(Q.sup.1)C(O);L is p-phenylene substituted by R.sup.4 ; andM is phenyl substituted by R.sup.5 and R.sup.6,T has one of the meanings given above, for Z or is C(CH.sub.3).sub.2, C.sub.2 H.sub.4, C(Q.sup.2).dbd.C(Q.sup.3), C.tbd.C, CH.sub.2 C(O), C(O)CH.sub.2, CH.sub.2 O or OCH.sub.2,R.sup.1 is a group Ar, Ar-C.sub.1-4 -alkyl, ArO or ArC(O),Ar is phenyl substituted by R.sup.7, R.sup.8 and R.sup.9 ;R.sup.2 and R.sup.3 individually are H, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy or C.sub.6 H.sub.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: June 23, 1987
    Assignee: Hoffmann-LaRoche Inc.
    Inventors: Jean-Marie Cassal, Albrecht Edenhofer, Henri Ramuz
  • Patent number: 4474777
    Abstract: There are presented novel pharmaceutically active substances which inhibit the intestinal resorption of cholesterol and which accordingly can be used in the control or prevention of atherosclerosis. These active substances are benzodiazepines of the formula ##STR1## wherein R.sup.1 is (C.sub.1 -C.sub.4)-alkyl, R.sup.2 is hydrogen or methyl, R.sup.3 and R.sup.4 each are halogen and R.sup.5 is (C.sub.3 -C.sub.9)-alkylamino substituted by at least two hydroxy groups, (C.sub.3 -C.sub.6)-cycloalkylamino substituted by at least one hydroxy group, glucosamino, galactosamino, mannosamino, monohydroxy-1-azetidinyl, mono- or dihydroxy-1-pyrrolidinyl or mono-, di- or trihydroxy-1-piperidinyl,and the readily hydrolyzable esters and ethers thereof, as well as pharmaceutically acceptable salts of these compounds.
    Type: Grant
    Filed: December 17, 1982
    Date of Patent: October 2, 1984
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Jean-Marie Cassal, Albert E. Fischli, Andre Szente
  • Patent number: 4064173
    Abstract: A process for the preparation of 9,10-seco-steroids of the formula ##STR1## WHEREIN R.sup.1 and R.sup.2 independently are hydrogen, amino, OR.sup.5, OCOR.sup.6 or NHCOR.sup.5 wherein R.sup.5 is hydrogen or lower alkyl and R.sup.6 is lower alkyl or phenyl; R.sup.3 is lower alkyl; R.sup.4 is oxo, ##STR2## wherein R.sup.13 is lower alkyl, lower alkoxy -- lower alkylene, tetrahydropyranyl or tetrahydrofuryl, R.sup.14 is lower alkyl or aryl and R.sup.15 and R.sup.16 are lower alkyl or taken together form lower alkylene or arylene, and n is 1 or 2 is disclosed. The 9,10-seco-steroids of this invention are useful intermediates for the preparation of steroids.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: December 20, 1977
    Assignee: Hoffmann-La Roche, Inc.
    Inventors: Jean-Marie Cassal, Andor Furst, Werner Meier
  • Patent number: 4045490
    Abstract: A process for the preparation of 9,10-seco-steroids of the formula ##STR1## wherein R.sup.1 and R.sup.2 independently are hydrogen, amino, OR.sup.5, OCOR.sup.6 or NHCOR.sup.5 wherein R.sup.5 is hydrogen or lower alkyl and R.sup.6 is lower alkyl or phenyl; R.sup.3 is lower alkyl; R.sup.4 is oxo, ##STR2## wherein R.sup.13 is lower alkyl, lower alkoxy - lower alkylene, tetrahydropyranyl or tetrahydrofuryl, R.sup.14 is lower alkyl or aryl and R.sup.15 and R.sup.16 are lower alkyl or taken together form lower alkylene or arylene, and n is 1 or 2 is disclosed. The 9,10-seco-steroids of this invention are useful intermediates for the preparation of steroids.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: August 30, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Jean-Marie Cassal, Andor Furst, Werner Meier