Patents Represented by Attorney, Agent or Law Firm Norbert Gruenfeld
  • Patent number: 5334600
    Abstract: The compounds of the formula ##STR1## wherein R represents hydrogen, lower alkyl, aryl, biaryl, C.sub.3 -C.sub.7 -cycloalkyl, aryl-lower alkyl, aryl-lower alkenyl, aryl-lower alkynyl, aryloxy-lower alkyl, arylthio-lower alkyl, C.sub.3 -C.sub.7 -cycloalkyl-lower alkyl, biaryl-lower alkyl, aryl-C.sub.3 -C.sub.7 -cycloalkyl, aryl-C.sub.3 -C.sub.7 -cycloalkyl-lower alkyl or aryloxy-aryl-lower alkyl; and aryl represents carbocyclic or heterocyclic aryl; Z represents C.sub.1 -C.sub.3 -alkylene or vinylene, each unsubstituted or substituted by lower alkyl; Y represents SO.sub.2 (sulfonyl) or CO (carbonyl); A represents .sub.0 (oxygen), S (sulfur), or a direct bond; B represents lower alkylene; or B represents lower alkenylene or lower alkynylene provided that A represents a direct bond; X represents oxygen or sulfur, R.sub.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: August 2, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: John H. Van Duzer, Dennis M. Roland
  • Patent number: 5294632
    Abstract: The invention relates to the N-phosphonomethyl-biaryl substituted dipeptide derivatives of formula I ##STR1## and tetrazole derivatives of the formula Ia ##STR2## wherein A represents a direct bond, lower alkylene, phenylene or cyclohexylene; m represents 1 or zero, provided that m represents 1 when A is a direct bond; R.sub.2 represents hydrogen, hydroxy, lower alkyl, aryl-lower alkyl, C.sub.5 -C.sub.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: March 15, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Mark D. Erion, Stephane De Lombaert
  • Patent number: 5273990
    Abstract: The present invention relates to the N-phosphonomethyl substituted tetrazole derivatives of formula I ##STR1## and tautomers thereof wherein R.sub.1 is aryl or biaryl; n is zero, 1 or 2 pharmaceutically acceptable mono- or di-ester derivatives thereof in which one or both of the acidic hydroxy groups of the phosphono functional group are esterified in form of a pharmaceutically acceptable mono- or di-ester; and pharmaceutically acceptable salts thereof; pharmaceutical compositions comprising said compounds; methods for preparation of said compounds and for the preparation of intermediates; and methods of treating disorders in mammals which are responsive to the inhibition of neutral endopeptidases by administration of said compounds to mammals in need of such treatment.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: December 28, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: Stephane De Lombaert
  • Patent number: 5260316
    Abstract: The compounds of the formula ##STR1## wherein R represents hydrogen, lower alkyl, aryl, biaryl, C.sub.3 -C.sub.7 -cycloalkyl, aryl-lower alkyl, aryl-lower alkenyl, aryl-lower alkynyl, aryloxy-lower alkyl, arylthio-lower alkyl; C.sub.3 -C.sub.7 -cycloalkyl-lower alkyl, biaryl-lower alkyl, aryl-C.sub.3 -C.sub.7 -cycloalkyl, aryl-C.sub.3 -C.sub.7 -cycloalkyl-lower alkyl or aryloxy-aryl-lower alkyl; and aryl represents carbocyclic or heterocyclic aryl; Z represents C.sub.1 -C.sub.3 -alkylene or vinylene, each unsubstituted or substituted by lower alkyl; Y represents SO.sub.2 or CO; A represents O, S, or a direct bond; B represents lower alkylene; or B represents lower alkenylene provided that A represents a direct bond; X represents oxygen or sulfur; R.sub.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: November 9, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: John H. Van Duzer, Dennis M. Roland
  • Patent number: 5250522
    Abstract: The present invention relates to the N-phosphonomethyl-biaryl substituted amino acid derivatives of formula I ##STR1## wherein X represents a direct bond, C.sub.1-4 -alkylene or C.sub.2 -C.sub.4 -alkenylene; R and R' represent independently hydrogen, carbocyclic aryl, 6-tetrahydronaphthyl, 5-indanyl, .alpha.-(trichloromethyl, carboxyl, esterified carboxyl or amidated carboxyl)substituted-(lower alkyl or aryl-lower alkyl), acyloxymethyl optionally monosubstituted on methyl carbon by C.sub.1-20 -alkyl, by C.sub.5 -C.sub.7 -cycloalkyl, by aryl or by aryl-lower alkyl; R.sub.1 represents monocyclic carbocyclic or monocyclic heterocyclic aryl; COR.sub.3 represents carboxyl or carboxyl derivatized in form of a pharmaceutically acceptable ester; R.sub.2 and R.sub.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: October 5, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: Stephane De Lombaert
  • Patent number: 5246965
    Abstract: The invention relates to the compounds of the formula ##STR1## wherein the C(.dbd.NH)--NHR group may be in tautomeric or isomeric form, and pharmaceutically acceptable salts thereof, in which:R is hydrogen or an acyl radical which is derived from an organic carbonic acid, an organic carboxylic acid, a sulfonic acid, or a carbamic acid;R.sub.1 is a substituent selected from an aliphatic hydrocarbon radical, an araliphatic hydrocarbon radical and a cycloaliphatic hydrocarbon radical;X.sub.1 and X.sub.3, independently of one another, are oxygen (--O--) or sulphur (--S--); andX.sub.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: September 21, 1993
    Assignee: Ciba-Geigy
    Inventor: Alan J. Main
  • Patent number: 5244889
    Abstract: The invention relates to macrocyclic lactam derivatives of formula I ##STR1## wherein R is hydrogen or acyl; m is an integer from 4 to 9 inclusive; n is 1 or 2; p is zero, 1 or 2; X is --CONH-- or --NHCO--; Y is S, O or CH.sub.2 ; R.sub.1 is --COOH; or R.sub.1 is ##STR2## in which R.sub.2 is hydrogen, lower alkyl, aryl-lower alkyl, amino-lower alkyl, hydroxy-lower alkyl, acyloxy-lower alkyl, lower alkoxy-lower alkyl, mercapto-lower alkyl, lower alkyl-(thio, sulfinyl or sulfonyl)-lower alkyl, or carboxy-lower alkyl, R.sub.3 is hydrogen or lower alkyl, and q is zero or an integer from 1 to 5 inclusive; or R.sub.1 is ##STR3## in which R.sub.4 is hydrogen, lower alkyl, lower alkoxy, hydroxy or acyloxy, and r is 1 or 2; or R.sub.1 is ##STR4## in which s is 1 or 2; or R.sub.1 is ##STR5## in which R.sub.5 and R.sub.6 independently represent hydrogen, lower alkyl, C.sub.5 - or C.sub.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: September 14, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Lawrence J. MacPherson, James L. Stanton
  • Patent number: 5217996
    Abstract: The invention relates to biaryl substituted 4-amino-butyric acid derivatives of formula I ##STR1## wherein COX and COX' independently represent carboxyl or carboxyl derivatized in form of a pharmaceutically acceptable ester or amide; R.sub.1 represents hydrogen, lower alkyl, C.sub.3 -C.sub.7 -cycloalkyl-lower alkyl, aryl-lower alkyl, biaryl-lower alkyl, lower alkoxy, aryl-lower alkoxy, aryloxy, N-lower alkylamino, N,N-di-lower alkylamino, N-aryl-lower alkylamino, N,N-di-aryl-lower alkylamino, N-arylamino, N,N-diarylamino, lower alkanoylamino, aryl-lower alkanoylamino or aroylamino; R.sub.2 represents hydrogen, hydroxy, lower alkoxy, lower alkyl, aryl-lower alkyl, C.sub.3 -C.sub.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: June 8, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: Gary Ksander
  • Patent number: 5217963
    Abstract: The present invention is concerned with the phosphonic acids of formula I ##STR1## wherein one or both of the acidic hydroxy groups of the phosphonic acid moiety may be functionalized in form of pharmaceutically acceptable mono- or di- esters; wherein Y represents optionally substituted 2-carboxytetrahydroquinolinyl or 2-carboxyperhydroquinolinyl, and in each of which the carboxy group may be functionalized in form of a pharmaceutically acceptable ester or amide; A represents a direct bond, lower alkenylene, lower alkylidene or lower alkylene; and pharmaceutically acceptable salts thereof; which are useful for the treatment of nervous system disorders in mammals and as antagonists of the N-methyl-D-aspartate sensitive excitatory amino acid receptor.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: June 8, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Alan J. Hutchison, Kenneth R. Shaw, Josef A. Schneider
  • Patent number: 5180718
    Abstract: The invention relates to novel acyl derivatives of rifamycins of the formula ##STR1## and the salts thereof, in which the structural elements --A.sub.1 --A.sub.2 --, --A.sub.3 --A.sub.4 -- and --A.sub.5 --A.sub.6 -- each denote ethylene or vinylene or the elements --A.sub.1 --A.sub.2 -- and --A.sub.3 --A.sub.4 -- each denote ethylene and --A.sub.5 --A.sub.6 -- denotes vinylene; X represents >C(R.sub.6)-- or >N-- and R.sub.6 denotes hydrogen or alkyl; alk denotes an aliphatic hydrocarbon radical; R.sub.1 denotes hydrogen or acyl; R.sub.2 denotes acyl, or alkyl which is optionally substituted by an aromatic radical, and R.sub.3 and R.sub.3 ' represent a common bond, or R.sub.3 denotes hydrogen or acyl, and R.sub.3 ' is hydrogen; R.sub.4 denotes hydrogen, cycloalkyl or aryl; R.sub.5 denotes hydrogen or acetyl; R.sub.7 denotes hydrogen or alkyl, which can be used as active compounds in medicaments, the preparation and use thereof, and pharmaceutical products and the preparation thereof.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: January 19, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Wilhelm Kump, Christian Borel, Jen Chen, Siem J. Veenstra, John Francis, Benjamin B. Mugrage
  • Patent number: 5166212
    Abstract: Disclosed are compound of the formula ##STR1## wherein X and Y independently represent hydroxymethyl; cyano; carboxy; functionally modified carboxy selected from esterified carboxy, carbamoyl, and N-substituted carbamoyl; 5-tetrazolyl; 2-oxazolyl, 4,5-dihydro-2-oxazolyl, or each said grouping substituted by lower alkyl; R and R.sub.o independently represent lower alkyl, (C.sub.3 -C.sub.7)-cycloalkyl-lower alkyl, or aryl-lower alkyl; A represents methylene; or A represents methylene substituted by lower alkyl, by lower alkylthio-lower alkyl, by aryl-lower alkylthio-lower alkyl, by arylthio-lower alkyl, by hydroxy-lower alkyl, by acyloxy-lower alkyl, by lower alkoxy-lower alkyl, by alkyloxy-lower alkyl, by aryloxy-lower alkyl, by amino-lower alkyl by acylamino-lower alkyl, by guanidino-lower amino-lower alkyl, by (C.sub.3 -C.sub.7)-cycloalkyl, by (C.sub.3 -C.sub.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: November 24, 1992
    Assignee: Ciba-Geigy Corporation
    Inventor: Gary M. Ksander
  • Patent number: 5155130
    Abstract: The invention relates to the compounds of the formula ##STR1## wherein each R independently represents hydrogen, lower alkyl, halogen, trifluoromethyl, lower alkoxy, carbocyclic or heterocyclic aryl, carbocyclic or heterocyclic aryloxy, carbocyclic or heterocyclic aryl-lower alkyloxy, carbocyclic or heterocyclic aryl-lower alkyl, C.sub.3 -C.sub.7 -cycloalkyl-lower alkyloxy, or C.sub.3 -C.sub.7 -cycloalkyloxy; R.sub.1 represents hydrogen, lower alkyl or carbocyclic aryl; R.sub.2 represents hydrogen or lower alkyl; Y represents oxygen (O), sulfur (S), sulfinyl or sulfonyl; n represents 1, 2 or 3; A represents a direct bond or lower alkylene; Z represents ##STR2## wherein R.sub.3 represents hydrogen or acyl; R.sub.4 represents lower alkyl, C.sub.3 -C.sub.7 -cycloalkyl, carbocyclic or heterocyclic aryl, carbocyclic or heterocyclic aryl-lower alkyl, or C.sub.3 -C.sub.7 -cycloalkyl-lower alkyl; or Z represents ##STR3## wherein X represents oxygen or sulfur, R.sub.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: October 13, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: James L. Stanton, Yoshitaka Satoh, Alan J. Hutchison
  • Patent number: 5155100
    Abstract: The invention relates to the N-phosphonomethyl-biaryl substituted dipeptide derivatives of formula I ##STR1## wherein A represents a direct bond, lower alkylene, phenylene or cyclohexylene; m represents 1 or zero, provided that m represents 1 when A is a direct bond; R.sub.2 represents hydrogen, hydroxy, lower alkyl, aryl-lower alkyl, C.sub.5 -C.sub.
    Type: Grant
    Filed: May 1, 1991
    Date of Patent: October 13, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Mark D. Erion, Stephane De Lombaert
  • Patent number: 5153214
    Abstract: The present invention is concerned with compounds of formula I ##STR1## wherein A, B, M, R, Ar and Het are as defined in the specification, pharmaceutically acceptable ester and amide derivatives thereof; N-oxides thereof, tetrazole derivatives thereof, and salts thereof. These compounds have valuable pharmacological activities, especially as inhibitors of thromboxane synthetase and as receptor antagonists of thromboxane A.sub.2 and prostaglandin H.sub.2.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: October 6, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Shripad S. Bhagwat, Alan J. Main, Herman R. Rodriguez
  • Patent number: 5147870
    Abstract: The invention relates to the preparation of substituted azacyclohexyl derivatives of rifamycins of the formula ##STR1## and salts thereof in which R.sub.1 is hydrogen or trialkylacetyl, R.sub.2 is hydrogen or acetyl and R.sub.3 is alkyl, which exhibit valuable pharmacological properties.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: September 15, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Wilhelm Kump, Keith A. Menear
  • Patent number: 5128124
    Abstract: The present invention relates to a transdermal therapeutic system for the combined administration of oestrogens and gestagens. The therapeutic system consists of:(1) a closed outer layer which is impermeable to the constituents of the active ingredient formulation,(2) a reservoir containing essential constituents of the active ingredient formulation and, optionally, a membrane,(3) an adhesive layer and(4) a peel-off protective layer on the adhesive layer.The system contains an oestrogen derivative in combination with a synthetic gestagen, and an agent that enhances percutaneous absorption.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: July 7, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Fankhauser, Lotte Schenkel
  • Patent number: 5120758
    Abstract: The invention relates to the compounds of the formula ##STR1## wherein each R independently represents hydrogen, lower alkyl, halogen, trifluoromethyl, lower alkoxy, carbocyclic or heterocyclic aryl, carbocyclic or heterocyclic aryloxy, carbocyclic or heterocyclic aryl-lower alkyloxy, carbocyclic or heterocyclic aryl-lower alkyl, C.sub.3 -C.sub.7 -cycloalkyl-lower alkyloxy, or C.sub.3 -C.sub.7 -cycloalkyloxy; n represents 1, 2, 3 or 4; m represents 0, 1 or 2; A represents a direct bond or lower alkylene; X represents oxygen or sulfur; R.sub.1 represents hydrogen, acyl, lower alkoxycarbonyl, aminocarbonyl, mono- or di-lower alkylaminocarbonyl, lower alkenylaminocarbonyl, lower alkynylaminocarbonyl, carbocyclic or heterocyclic aryl-lower alkylaminocarbonyl, carbocyclic or heterocyclic arylaminocarbonyl, C.sub.3 -C.sub.7 -cycloalkylaminocarbonyl or C.sub.3 -C.sub.7 -cycloalkyl-lower alkylaminocarbonyl; R.sub.2 represents lower alkyl, lower alkoxycarbonyl-lower alkyl, C.sub.3 -C.sub.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: June 9, 1992
    Assignee: Ciba-Geigy Corporation
    Inventor: Yoshitaka Satoh
  • Patent number: 5112845
    Abstract: The invention is concerned with aromatase inhibiting compounds of formula I ##STR1## wherein R and Ro represent hydrogen or lower alkyl; or R and Ro located on adjacent carbon atoms and together when combined with the benzene ring to which they are attached form a naphthalene or tetrahydronaphthalene ring; R.sub.1 and R.sub.2 independently represent hydrogen, lower alkyl, (lower alkyl, aryl or aryl-lower alkyl)-thio, lower alkenyl, aryl, aryl-lower alkyl, C.sub.3 -C.sub.6 -cycloalkyl, or C.sub.3 -C.sub.6 -cycloalkyl-lower alkyl; or R.sub.1 and R.sub.2 combined represent lower alkylidene, mono- or di-aryl-lower alkylidene; R.sub.1 and R.sub.2 combined also represent C.sub.4 -C.sub.6 -straight chain alkylene, lower alkyl-substituted straight chain alkylene or ortho-phenylene bridged-C.sub.2 -C.sub.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: May 12, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert M. Bowman, Ronald E. Steele, Leslie J. Browne, Bruce H. Ewald, Robert Diener
  • Patent number: 5096919
    Abstract: Disclosed are the pyrrolylphenyl-substituted hydroxamic acid derivatives of the formula ##STR1## wherein R represents hydrogen, lower alkyl, halogen or lower alkoxy; R.sub.1 and R.sub.2 independently represent hydrogen, lower alkyl or aryl; Y represents a direct bond, lower alkylene, lower alkenylene, lower alkadienylene, (thio, sulfinyl or sulfonyl)-lower alkylene or oxy-lower alkylene; Z represents ##STR2## wherein R.sub.3 represents hydrogen or acyl; R.sub.4 represents lower alkyl, C.sub.3 -C.sub.7 -cycloalkyl, aryl or aryl-lower alkyl; or Z represents ##STR3## wherein R.sub.3 represents hydrogen or acyl; R.sub.5 represents lower alkyl, C.sub.3 -C.sub.7 -cycloalkyl, aryl, aryl-lower alkyl, amino or N-(mono- or di-lower alkyl)-amino; R.sub.6 and R.sub.7 represent hydrogen or lower alkyl; and pharmaceutically acceptable salts thereof provided that R.sub.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: March 17, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Jan W. F. Wasley, Karl O. Gelotte, Harold Meckler
  • Patent number: 5096925
    Abstract: Disclosed are compounds of the formula ##STR1## wherein X and Y independently represent hydroxymethyl; cyano; carboxy; functionally modified carboxy selected from esterified carboxy, carbamoyl, and N-substituted carbamoyl; 5-tetrazolyl; 2-oxazolyl, 4,5-dihydro-2-oxazolyl, 2-imidazoly or 4,5-dihydro-2-imidazolyl or any said grouping substituted by lower alkyl; R and R.sub.o independently represent hydrogen, lower alkyl, (C.sub.3 -C.sub.7)-cycloalkyl-lower alkyl, or aryl-lower alkyl in which aryl represents phenyl, pyridyl, thienyl, furyl, biphenyl or naphthyl, each unsubstituted or mono- or di-substituted by halogen, lower alkyl, hydroxy, acyloxy, lower alkoxy, trifluoromethyl or cyano; A represents straight chain (C.sub.2 -C.sub.5)-alkylene; or A represents straight chain (C.sub.2 -C.sub.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: March 17, 1992
    Assignee: Ciba-Geigy Corporation
    Inventor: Gary M. Ksander