Patents by Inventor Leslie J. Browne

Leslie J. Browne 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: 5473078
    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: July 14, 1994
    Date of Patent: December 5, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert M. Bowman, Leslie J. Browne
  • Patent number: 5428160
    Abstract: Disclosed are compounds of formula I ##STR1## wherein R.sub.1 represents hydrogen, lower alkyl, substituted lower alkyl, nitro, halogen, free, etherified or esterified hydroxy, free, etherified, oxidised etherified or esterified mercapto, unsubstituted, mono- or disubstituted amino, ammonio, free or functionally modified sulfo, free or functionally modified formyl, C.sub.2 -C.sub.20 -acyl, cyano, free or functionally modified carboxy; and R.sub.2 represents hydrogen, lower alkyl, substituted lower alkyl, halogen; free, etherified or esterified hydroxy; free, etherified, oxidised etherified or esterified mercapto; free or functionally modified carboxy, or acyl; the 7,8-dihydro derivatives thereof; and compounds of the formula I* ##STR2## wherein n denotes 0, 1, 2, 3, or 4, and R.sub.1 and R.sub.2 are as defined above under formula I and salts thereof; e.g. as aromatase inhibitors; pharmaceutical compositions containing these compounds; the use of these compounds for the treatment of conditions responsive to e.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: June 27, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Leslie J. Browne
  • Patent number: 5352795
    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: May 11, 1992
    Date of Patent: October 4, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert M. Bowman, Leslie J. Browne
  • 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: 5071861
    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: April 18, 1990
    Date of Patent: December 10, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert M. Bowman, Ronald E. Steele, Leslie J. Browne
  • Patent number: 4937250
    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: March 7, 1988
    Date of Patent: June 26, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert M. Bowman, Ronald E. Steele, Leslie J. Browne
  • Patent number: 4889861
    Abstract: Disclosed are compounds of formula I ##STR1## wherein R.sub.1 represents hydrogen, lower alkyl, substituted lower alkyl, nitro, halogen, free, etherified or esterified hydroxy, free, etherified, oxidized etherified or esterified mercapto, unsubstituted, mono- or disubstituted amino, ammonio, free or functionally modified sulfo, free or functionally modified formyl, C.sub.2 --C.sub.20 -acyl, cyano, free or functionally modified carboxy; and R.sub.2 represents hydrogen, lower alkyl, substituted lower alkyl, halogen; free, etherified or esterified hydroxy; free, etherified, oxidized etherified or esterified mercapto; free or functionally modified carboxy, or acyl; the 7,8-dihydro derivatives thereof; and compounds of the formula I* ##STR2## wherein n denotes 0, 1, 2, 3 or 4, and R.sub.1 and R.sub.2 are as defined above under formula I and salts thereof; e.g. as aromatase inhibitors; pharmaceutical compositions containing these compounds; the use of these compounds for the treatment of conditions responsive to e.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: December 26, 1989
    Assignee: Ciba-Geigy Corp.
    Inventor: Leslie J. Browne
  • Patent number: 4749713
    Abstract: The invention is concerned with aromatase inhibiting compounds of formula I ##STR1## where 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: March 7, 1986
    Date of Patent: June 7, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert M. Bowman, Ronald E. Steele, Leslie J. Browne
  • Patent number: 4728645
    Abstract: Disclosed are compounds of formula I ##STR1## wherein R.sub.1 represents hydrogen, lower alkyl, substituted lower alkyl, nitro, halogen, free, etherified or esterified hydroxy, free, etherified, oxidized etherified or esterified mercapto, unsubstituted, mono- or disubstituted amino, ammonio, free or functionally modified sulfo, free or functionally modified formyl, C.sub.2 -C.sub.20 -acyl, cyano, free or functionally modified carboxy; and R.sub.2 represents hydrogen, lower alkyl, substituted lower alkyl, halogen; free, etherified or esterified hydroxy; free, etherified, oxidized etherified or esterified mercapto; free or functionally modified carboxy, or acyl; the 7,8-dihydro derivatives thereof; and compounds of the formula I* ##STR2## wherein n denotes 0, 1, 2, 3 or 4, and R.sub.1 and R.sub.2 are as defined above under formula I and salts thereof; e.g. as aromatase inhibitors; pharmaceutical compositions containing these compounds; the use of these compounds for the treatment of conditions responsive to e.
    Type: Grant
    Filed: February 4, 1986
    Date of Patent: March 1, 1988
    Assignee: Ciba-Geigy Corporation
    Inventor: Leslie J. Browne
  • Patent number: 4617307
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 represents cyano, nitro or C.sub.1 -C.sub.4 -alkyl or the 7,8-dihydro derivative thereof or the 5,6,7,8 tetrahydro derivative of the formula ##STR2## wherein R.sub.1 is as defined under formula Ia and R.sub.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen etherified or esterified hydroxy or mercapto, carboxy-C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxycarbonyl-C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkanoyl, to stereoisomers, mixtures of these stereoisomers and salts of these compounds are disclosed as well as their preparation, pharmaceutical compositions containing the same and the use thereof as inhibitors of aromatase activity.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: October 14, 1986
    Assignee: Ciba-Geigy Corporation
    Inventor: Leslie J. Browne
  • Patent number: 4588732
    Abstract: Disclosed are compounds of the formula I ##STR1## or a 5,6,7,8-tetrahydro derivative thereof, wherein R.sub.1 is hydrogen, halogen, lower alkyl, lower alkoxy, hydroxy, or aryl-lower alkoxy in which aryl represents phenyl or phenyl substituted by lower alkoxy, lower alkyl, halogen or trifluoromethyl; R.sub.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: May 13, 1986
    Assignee: Ciba-Geigy Corporation
    Inventor: Leslie J. Browne
  • Patent number: 4536505
    Abstract: Disclosed are compounds of formula I ##STR1## wherein Ar is 3- or 4-pyridyl or 3- or 4-pyridyl substituted by lower alkyl;R.sub.1 is hydrogen, halogen, trifluoromethyl, lower alkyl, hydroxy, acylated or etherified hydroxy, lower alkyl-(thio, sulfinyl or sulfonyl), or two of R.sub.1 on adjacent carbon atoms represent alkylenedioxy;p is 1 or 2;R.sub.2 represents hydrogen or lower alkyl; one of R.sub.3 and R.sub.4 represents hydrogen and the other of R.sub.3 and R.sub.
    Type: Grant
    Filed: May 17, 1983
    Date of Patent: August 20, 1985
    Assignee: Ciba-Geigy Corporation
    Inventor: Leslie J. Browne
  • Patent number: 4470986
    Abstract: Disclosed are e.g. 5-(tetrazolylalkyl, hydroxycarbamoylalkyl)imidazo[1,5-a]-pyridines, and methods of synthesis. Said compounds are useful as selective thromboxane synthetase inhibitors for the treatment of diseases such as cerebral ischaemia, shock, thrombosis and ischaemic heart disease.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: September 11, 1984
    Assignee: Ciba-Geigy Corporation
    Inventor: Leslie J. Browne
  • Patent number: 4296115
    Abstract: Secondary hydroxypyridylalkylamines, e.g., those of the formula ##STR1## and acid addition salts thereof are cardioprotective, e.g., antiischemic agents.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: October 20, 1981
    Assignee: Ciba-Geigy Corporation
    Inventor: Leslie J. Browne
  • Patent number: 4134678
    Abstract: Method and apparatus for the simultaneous automatic analysis and sequential displaying in digital form of a plurality of parameters of whole or hemolyzed blood samples, such as total hemoglobin, percent oxyhemoglobin, percent carboxyhemoglobin, percent methemoglobin (in each case percent meaning percentage of total hemoglobin) and oxygen content. The apparatus is an electro-optical instrument including a servo-controlled spectral line source, such as a hollow cathode lamp, a laser etc., a ratiometric logarithmic amplifier of minimized dynamic range, a fluid-flow system of improved design that combine to measure the absorbances of blood samples at a plurality of wavelengths defined and generated by the spectral line source, to calculate the above parameters based on the absorbances by the use of a micro-computer and associated circuitry absorbances, to display automatically and digitally one of the parameters, and then to display digitally seriatim the remaining parameters responsive to operator intervention.
    Type: Grant
    Filed: March 16, 1977
    Date of Patent: January 16, 1979
    Assignee: Instrumentation Laboratory Inc.
    Inventors: Leslie J. Brown, Bruno DeGironimo, Charles F. Mountain, Richard B. Stevens, Fernando M. Vasconcelos