Patents Assigned to Merck Frosst Canada & Co.
  • Patent number: 6174874
    Abstract: The invention encompasses the novel class of compounds represented by formula I which are inhibitors of the PTP-1B enzyme. The invention also encompasses pharmaceutical compositions and methods of treating or preventing PTP-1B mediated diseases.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: January 16, 2001
    Assignee: Merck Frosst Canada & Co.
    Inventors: Zhaoyin Wang, Claude Dufresne, Yves Leblanc, Chun Sing Li, Jacques Y. Gauthier, Cheuk K. Lau, Michel Therien, Patrick Roy
  • Patent number: 6169188
    Abstract: The invention encompasses the novel compound of Formula I useful in the treatment of cyclooxygenase-2 mediated diseases. The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising compounds of Formula I.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: January 2, 2001
    Assignee: Merck Frosst Canada & Co.
    Inventors: Michel Belley, Jacques Yves Gauthier, Erich Grimm, Yves LeBlanc, Chun-Sing Li, Michel Therien, Cameron Black, Petpiboon Prasit, Cheuk-Kun Lau, Patrick Roy
  • Patent number: 6150534
    Abstract: This invention encompasses a novel process for synthesizing the compound represented by formula I: ##STR1## These compounds are useful as non-steroidal anti-inflammatory agents.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: November 21, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Paul O'Shea, Richard D. Tillyer, Xin Wang, Sophie-Dorothee Clas, Chad Dalton
  • Patent number: 6133292
    Abstract: The invention encompasses compounds of Formula I as well as a method of treating COX-2 mediated diseases comprising administration to a patient need of such treatment of a non-toxic therapeutically effective amount of a compound of Formula I ##STR1## e.g. (5R)-3-(3,4-difluorophenyl)-5-ethyl-5-methyl-4-[4-(methylsulfonyl)phenyl]- 2,5-dihydro-2-furanone.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: October 17, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Zhaoyin Wang, Erich Grimm, Serge Leger
  • Patent number: 6121253
    Abstract: This invention relates to prostaglandin-bisphosphonate conjugates. These conjugates are effective for treating or preventing bone diseases such as osteoporosis. These conjugates simultaneously deliver a prostaglandin agent for increasing bone formation and a bisphosphonate agent for inhibiting bone resorption.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: September 19, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Yongxin Han, Robert N. Young, Laurent Gil, Rejean Ruel
  • Patent number: 6114132
    Abstract: Disclosed is a binding assay for proteases and phosphatases, which contain cysteine in their binding sites or as a necessary structural component for enzymatic binding. The sulfhydryl group of cysteine is the nucleophilic group in the enzyme's mechanistic proteolytic and hydrolytic properties. The assay can be used to determine the ability of new, unknown ligands and mixtures of compounds to competitively bind with the enzyme versus a known binding agent for the enzyme, e.g., a known enzyme inhibitor. By the use of a mutant form of the natural or native wild-type enzyme, in which serine, or another amino acid, e.g., alanine, replaces cysteine, the problem of interference from extraneous oxidizing and alkylating agents in the assay procedure is overcome. The interference arises because of oxidation or alkylation of the sulfhydryl, --SH (or --S.sup.-), in the cysteine, which then adversely affects the binding ability of the enzyme.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: September 5, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Sylvie Desmarais, Michael Gresser, Richard Friesen, Brian Kennedy, Don Nicholson, Kathryn Skorey, Chidambaran Ramachandran, Anthony Ford-Hutchinson
  • Patent number: 6110701
    Abstract: A complementary DNA (cDNA) encoding full length form of ICE.sub.rel -II is identified, sequenced and isolated. The cDNA is cloned into expression vectors for expression in recombinant hosts. The cDNA is useful to produce recombinant full length ICE.sub.rel -II. The cDNA and the recombinant ICE.sub.rel -II protein derived therefrom are useful in diagnostic kits, laboratory reagents and assays. The cDNA and the recombinant ICE.sub.rel -II protein may be used to identify compounds that affect ICE.sub.rel -II function, inflammation and cell apoptosis. ICE.sub.rel -II function, inflammation and cell apoptosis may also be modulated by ICE.sub.rel -II antisense or gene therapy.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: August 29, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Donald W. Nicholson, Ambereen Ali, Neil A. Munday, John P. Vaillancourt
  • Patent number: 6107087
    Abstract: The invention discloses a cDNA consisting of human cyclooxygenase-2 cDNA attached to 3'flanking sequence of human cyclooxygenase-1 methods for increasing the expression of human cyclooxygenase-2 in transformed cell and assays for preferentially and independently measuring cyclogense-2 in samples.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: August 22, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Gary P. O'Neill, Joseph A. Mancini
  • Patent number: 6103513
    Abstract: A complementary DNA (cDNA) encoding full length form of ICE.sub.rel -II is identified, sequenced and isolated. The cDNA is cloned into expression vectors for expression in recombinant hosts. The cDNA is useful to produce recombinant full length ICE.sub.rel -II. The cDNA and the recombinant ICE.sub.rel -II protein derived therefrom are useful in diagnostic kits, laboratory reagents and assays. The cDNA and the recombinant ICE.sub.rel -II protein may be used to identify compounds that affect ICE.sub.rel -II function, inflammation and cell apoptosis. ICE.sub.rel -II function, inflammation and cell apoptosis may also be modulated by ICE.sub.rel -II antisense or gene therapy.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: August 15, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Donald W. Nicholson, Ambereen Ali, Neil A. Munday, John P. Vaillancourt
  • Patent number: 6071936
    Abstract: The invention encompasses the novel compound of Formula I as well as a method of treating COX-2 mediated diseases comprising administration to a patient in need of such treatment of a non-toxic therapeutically effective amount of a compound of Formula I. ##STR1## The invention also encompasses certain pharmaceutical compositions for treatment of COX-2 mediated diseases comprising compounds of Formula I.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: June 6, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Daniel Dube, Rejean Fortin, Richard Friesen, Zhaoyin Wang, Jacques Yves Gauthier
  • Patent number: 6066715
    Abstract: Disclosed are new ligands for use in a binding assay for proteases and phosphatases, which contain cysteine in their binding sites or as a necessary structural component for enzymatic binding. The sulfihydryl group of cysteine is the nucleophilic group in the enzyme's mechanistic proteolytic and hydrolytic properties. The assay can be used to determine the ability of new, unknown ligands and mixtures of compounds to competitively bind with the enzyme versus a known binding agent for the enzyme, e.g., a known enzyme inhibitor. By the use of a mutant form of the natural or native wild-type enzyme, in which serine, or another amino acid, e.g., alanine, replaces cysteine, the problem of interference from extraneous oxidizing and alkylating agents in the assay procedure is overcome. The interference arises because of oxidation or alkylation of the sulfihydryl, --SH (or --S.sup.-), in the cysteine, which then adversely affects the binding ability of the enzyme.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: May 23, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Sylvie Desmarais, Richard Friesen, Robert Zamboni
  • Patent number: 6057319
    Abstract: The invention encompasses the novel compound of formula (I) useful in the treatment of cyclooxygenase-2 mediated diseases. The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising compounds of formula (I).
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: May 2, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Cameron Black, Serge Leger, Petpiboon Prasit, Zhaoyin Wang, Pierre Hamel, Yongxin Han, Gregory Hughes
  • Patent number: 6046217
    Abstract: The invention encompasses the novel compound of Formula I as well as a method of treating cyclooxygenase-2 mediated diseases comprising administration to a patient in need of such treatment of a non-toxic therapeutically effective amount of a compound of Formula I. ##STR1## The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising compounds of Formula I.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: April 4, 2000
    Assignee: Merck Frosst Canada & Co.
    Inventors: Richard Friesen, Rejean Fortin, Daniel Dube, Denis Deschenes
  • Patent number: 5958723
    Abstract: A novel human DP prostaglandin receptor has been identified and DNA encoding the receptor has been isolated, purified, sequenced and expressed in host cells. This DNA encoding the novel prostaglandin receptor and host cells expressing the receptor are used to identify modulators of the prostaglandin receptor.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: September 28, 1999
    Assignee: Merck Frosst Canada & Co.
    Inventors: Mark Abramovitz, Yves Boie, Kathleen Metters, Nicole Sawyer, Deborah M. Slipetz
  • Patent number: 5932481
    Abstract: A method for the rapid estimation of hyperplastic and hypertrophic changes in animal airways is an assay which specifically measures acidic and neutral mucoproteins in a linear fashion from 0.5 to at least 10 .mu.g. The assay comprises exposure of a test animal to a suspected metaplastic inducer, removal of the lungs, homogenization in an appropriately buffered solution containing reducing agents and protease inhibitors; removal of particulate matter; and size-fractionation of the SDS treated soluble extract. The high molecular weight material is immobilized and stained for either acidic or neutral mucosubstances and the specific staining is quantitated. The changes observed are consistent with those seen in histological sections of the exposed tissues.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: August 3, 1999
    Assignee: Merck Frosst Canada & Co.
    Inventors: Douglas J. Pon, Louise Boulet, Carlo J. van Staden, Rejean Fortin