Patents Assigned to Merck Sharpe & Dohme Ltd.
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Patent number: 8168799Abstract: A process for the preparation of a compound of formula (I), or a salt, hydrate or solvate thereof; wherein R1 and R2 are each independently hydrogen, or C1-6 alkyl groups or R1 and R2 are linked and, together with the cyclopentane carbon atoms to which they are attached, form a cyclopropyl ring.Type: GrantFiled: April 20, 2006Date of Patent: May 1, 2012Assignee: Merck Sharpe & Dohme Ltd.Inventors: Michael Stewart Ashwood, Matthew Bio, Edward Cleator, David Hands, Faye Julia Sheen, Robert Darrin Wilson
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Patent number: 6552043Abstract: The present invention relates to benzimidazolinylpiperidine derivatives useful as ligands for CGRP (Calcitonin Gene-Related Peptide) receptors, their use in therapy, pharmaceutical compositions comprising them and methods of treatment using them.Type: GrantFiled: May 30, 2001Date of Patent: April 22, 2003Assignees: Merck Sharpe & Dohme Ltd., Merck & Co, Inc.Inventors: Arthur A. Patchett, Raymond George Hill, Lihu Yang
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Patent number: 6130058Abstract: The present invention relates to a stably co-transfected eukaryotic cell line that expresses an N-methyl-D-aspartate (NMDA) receptor, particularly a human NMDA receptor, which receptor comprises at least one R1 subunit isoform, or at least one R1 subunit isoform and one or two R2 subunits. Additionally, the cell line can be used to design and develop NMDA receptor subtype-selective compounds. The invention also relates to cloning of novel cDNA sequences encoding the human NMDAR 2A subunit and various isoforms of the human NMDA R1 subunit.Type: GrantFiled: May 10, 1995Date of Patent: October 10, 2000Assignee: Merck Sharpe & Dohme Ltd.Inventors: Beatrice Le Bourdelles, Janice Ann Myers, Paul John Whiting
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Patent number: 6071909Abstract: The present patent application discloses compounds having formula (I) ##STR1## or a pharmaceutically acceptable salt thereof or an oxide thereof, wherein R.sup.3 is (II), ##STR2## wherein A, B and D each is CH, or one or two of A, B and D is N and the others are CH; R.sub.11 is phenyl, benzimidazolyl, or monocyclic heteroaryl all of which may be substituted one or more times with substituents selected from alkyl, alkoxy, phenyl, halogen, CF.sub.3, amino, nitro, cyano, acyl, acylamino, phenyl and monocyclic heteroaryl; and one of R.sup.6 and R.sup.7 is hydrogen and the other is furanyl or isoxazolyl each of which may be substituted one or more times with substituents selected from halogen, alkyl, alkoxy and phenyl. The compounds are useful for the treatment of various central nervous system disorders such as epilepsy and other convulsive disorders, anxiety, sleep disorders and memory disorders.Type: GrantFiled: July 20, 1999Date of Patent: June 6, 2000Assignee: Merck Sharpe & Dohme Ltd.Inventors: Timothy Harrison, Timothy Jason Sparey, Martin Richard Teall
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Patent number: 5998440Abstract: A class of substituted azetidine, pyrrolidine and piperidine derivatives, linked by a fluoro-substituted alkylene chain to a fused bicyclic heteroaromatic moiety such as indolyl, are selective agonists of 5-HT.sub.1 -like receptors, being potent agonists of the human 5-HT.sub.1D.alpha. receptor subtype while possessing at least a 10-fold selective affinity for the 5-HT.sub.1D.alpha. receptor subtype relative to the 5-HT.sub.1D.beta. subtype; they are therefore useful in the treatment and/or prevention of clinical conditions, in particular migraine and associated disorders, for which a subtype-selective agonist of 5-HT.sub.1D receptors is indicated, while eliciting fewer side-effects, notably adverse cardiovascular events, than those associated with non-subtype-selective 5-HT.sub.1D receptor agonists.Type: GrantFiled: May 8, 1998Date of Patent: December 7, 1999Assignee: Merck Sharpe & Dohme Ltd.Inventors: Jose Luis Castro Pineiro, Angus Murray MacLeod, Monique Bodil Van Niel
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Patent number: 5719057Abstract: The present invention relates to a stably co-transfected eukaryotic cell line capable of expressing a GABA-A receptor, particularly a human GABA-A receptor, which receptor comprises at least one alpha, one beta and one gamma subunit; to the cloning of novel cDNA sequences encoding the .alpha.-2, .alpha.-3, .alpha.-5, .alpha.-6 and .beta.-2 subunits of the human GABA-A receptor; and to the use of the cell line in designing and developing GABA-A receptor subtype-selective medicaments.Type: GrantFiled: April 5, 1995Date of Patent: February 17, 1998Assignee: Merck Sharpe & Dohme Ltd.Inventors: Karen Louise Hadingham, Beatrice le Bourdelles, Paul John Whiting, Peter Baxter Wingrove
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Patent number: 5652100Abstract: The present invention relates to stably co-transfected eukaryotic cell lines capable of expressing a recombinant GABA.sub.A receptor, particularly a recombinant human GABA.sub.A receptor, which comprises at least one alpha, one beta and one gamma subunit; and to the use of the cell line and/or membrane preparation in selecting compounds and designing medicaments which interact with the respective human recombinant GABA.sub.A receptor.Type: GrantFiled: November 17, 1994Date of Patent: July 29, 1997Assignee: Merck Sharpe & Dohme Ltd.Inventors: Karen Hadingham, Paul John Whiting
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Patent number: 5478933Abstract: Disclosed are new benzodiazepine compounds which are useful as cholecystokinin and gastrin receptor antagonists and are useful in the treatment of anxiety, panic and pain.Type: GrantFiled: April 8, 1994Date of Patent: December 26, 1995Assignee: Merck Sharpe & Dohme Ltd.Inventor: Graham A. Showell
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Patent number: 5432177Abstract: A class of pyrrolo[2,3-b]pyridine derivatives, substituted at the 3-position by a substituted piperazinylmethyl moiety, are antagonists of dopamine receptor subtypes within the brain, having a selective affinity for the dopamine D.sub.4 receptor subtype over other dopamine receptor subtypes, and are accordingly of benefit in the treatment and/or prevention of psychotic disorders such as schizophrenia while manifesting fewer side-effects than those associated with classical neuroleptic drugs.Type: GrantFiled: February 22, 1994Date of Patent: July 11, 1995Assignee: Merck Sharpe & Dohme Ltd.Inventors: Raymond Baker, Janusz J. Kulagowski, Neil R. Curtis, Paul D. Leeson, Mark P. Ridgill
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Patent number: 5410049Abstract: Compounds of formula (I), and salts and prodrugs thereof ##STR1## wherein: R.sup.1 is H, certain optionally substituted C.sub.1-6 alkyl, or C.sub.3-7 cyclocalkyl;R.sup.2 represents a group ##STR2## wherein X is O, S or NR.sup.8 where R.sup.8 is H or C.sub.1-4 alkyl; R.sup.3 is C.sub.1-6 alkyl, halo or NR.sup.6 R.sup.7 ;R.sup.4 is C.sub.1-7 alkyl, C.sub.3-7 cycloalkyl, C.sub.4-7 cycloalkylalkyl or optionally substituted aryl;n is 0, 1, 2 or 3; are CCK and/or gastrin receptor antagonists. They and compositions thereof are useful in therapy.Type: GrantFiled: December 17, 1992Date of Patent: April 25, 1995Assignee: Merck Sharpe & Dohme Ltd.Inventor: Mark S. Chambers
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Patent number: 5405853Abstract: A class of novel thiadiazoles, substituted on one of the ring carbon atoms with a non-aromatic azacyclic or azabicyclic ring system, and substituted on the other ring carbon atom with a substituent of low lipophilicity, or a hydrocarbon substituent; are potent muscarinic agonists, and have good CNS penetrability. The compounds are therefore useful in the treatment of neurological and mental illnesses, and are also of benefit in the treatment of severe painful conditions.Type: GrantFiled: December 13, 1993Date of Patent: April 11, 1995Assignee: Merck Sharpe & Dohme Ltd.Inventors: Raymond Baker, Angus M. MacLeod, John Saunders, Kevin Merchant
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Patent number: 5384408Abstract: 3(R)-[2-(6-trifluoromethylpyrazin)yl]-1-azabicyclo[2.2.2]octane and its salts, and pharmaceutical formulations thereof are useful in medicine. In particular, they are useful for the treatment of neurological and mental illnesses whose clinical manifestations are due to cholinergic deficiency, and for lowering intraocular pressure. The compound may be prepared by dehydroxylating or decarboxylating the corresponding 3-hydroxy- or carboxy-quinuclidine analogue.Type: GrantFiled: March 10, 1993Date of Patent: January 24, 1995Assignee: Merck Sharpe & Dohme Ltd.Inventors: Raymond Baker, Victor J. Lotti, Graham A. Showell
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Patent number: 5360802Abstract: This invention relates to benzodiazepine compounds which are useful as antagonists of cholecystokinin and gastrin.Type: GrantFiled: November 13, 1992Date of Patent: November 1, 1994Assignee: Merck Sharpe & Dohme Ltd.Inventors: Mark S. Chambers, Victor G. Matassa, Stephen R. Fletcher
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Patent number: 5348962Abstract: This present invention relates to a class of 4-hydroxy-2-(1H)-quinolones which are substituted in the 3-position by an optionally substituted aryl substituent. These compounds are selective non-competitive antagonists of N-methyl-D-aspartate (NMDA) receptors.Type: GrantFiled: November 18, 1993Date of Patent: September 20, 1994Assignee: Merck Sharpe & Dohme Ltd.Inventors: Janusz J. Kulagowski, Ian M. Mawer, Paul D. Leeson, Michael Rowley
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Patent number: 5346906Abstract: Pyridines, substituted by a quinuclidine and a substituent of low lipophilicity or a hydrocarbon substituent, their salts and prodrugs, and formulations thereof are useful in the treatment of neurodegenerative disorders such as dementia. The compounds can be synthesized by methods analogous to these known in the art.Type: GrantFiled: November 16, 1992Date of Patent: September 13, 1994Assignee: Merck Sharpe & Dohme Ltd.Inventors: Raymond Baker, John Saunders, Timothy M. Willson, Janusz J. Kulagowski
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Patent number: 5334606Abstract: Compounds of formula (I): ##STR1## wherein Q.sup.1 represents a phenyl group substituted by one or more halo; naphthyl; indolyl; benzthiophenyl; benzofuranyl; benzyl; or fluorenyl;R.sup.1 is H, C.sub.1-6 alkyl or C.sub.2-6 alkenyl;R.sup.2 is phenyl(C.sub.1-4 alkyl) optionally substituted in the phenyl ring by one or more groups selected from C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, halo, cyano, nitro, trifluoromethyl, SR.sup.b, SOR.sup.b, SO.sub.2 R.sup.b, OR.sup.b, NR.sup.b R.sup.c, NR.sup.b COR.sup.c, NR.sup.b COOR.sup.c, COOR.sup.b or CONR.sup.b R.sup.c, where R.sup.b and R.sup.c independently represent H, C.sub.1-6 alkyl, phenyl or trifluoromethyl; andZ is O, S, NR.sup.8 or CR.sup.9 R.sup.10, where R.sup.8 represents H C.sub.1-6 alkyl, phenyl, phenyl(C.sub.1-4 alkyl), COR.sup.11, COOR.sup.11, CONR.sup.9 R.sup.10 where R.sup.11 is phenyl, phenyl(C.sub.1-4 alkyl) or C.sub.1-6 alkyl, and R.sup.9 and R.sup.10 are each H, C.sub.1-6 alkyl, phenyl or phenyl(C.sub.Type: GrantFiled: November 30, 1992Date of Patent: August 2, 1994Assignee: Merck Sharpe & Dohme Ltd.Inventor: Angus M. MacLeod
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Patent number: 5331089Abstract: A class of monomeric or dimeric peptides containing a specific hexa- or heptapeptide unit in either linear or cyclic form are active tachykinin antagonists and are therefore useful in disease states in which these peptides have been implicated, such as allergic conditions, inflammation, migraine, arthritis and CNS disorders.Type: GrantFiled: December 17, 1992Date of Patent: July 19, 1994Assignee: Merck Sharpe & Dohme, Ltd.Inventors: Neil R. Curtis, Brian J. Williams
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Patent number: 5328927Abstract: Compounds of formula (I), and salts and prodrugs thereof ##STR1## wherein Q.sup.1 is halo substituted phenyl; naphthyl; indolyl; benzthiophenyl; benzofuranyl; benzyl; or fluorenyl;. . is an optional covalent bond;one of X and Y is H and the other is hydroxy or C.sub.1-6 alkoxy, or X and Y are together .dbd.0 or .dbd.NOR.sup.5 ;R.sup.1 and R.sup.2 are H; C.sub.1-6 alkyl optionally substituted by hydroxy, cyano, COR.sup.c, CO.sub.2 R.sup.c, CONR.sup.c R.sup.d, or NR.sup.c R.sup.d (where R.sup.c and R.sup.d are H, C.sub.1-6 alkyl or phenyl(C.sub.0-4 alkyl) optionally substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halo and trifluoromethyl); phenyl(C.sub.1-4 alkyl) (optionally substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halo or trifluoromethyl); COR.sup.c ; CO.sub.2 R.sup.c ; CONR.sup.c R.sup.d ; COC.sub.1-6 alkylNR.sup.c R.sup.d ; CONR.sup.c COOR.sup.d ; or SO.sub.2 R.sup.c ;R.sup.3 is H, C.sub.1-6 alkyl or C.sub.2-6 alkenyl; andR.sup.4 is phenyl optionally substituted by C.sub.1-6 alkyl, C.sub.Type: GrantFiled: February 24, 1993Date of Patent: July 12, 1994Assignee: Merck Sharpe & Dohme, Ltd.Inventors: Richard T. Lewis, Kevin J. Merchant, Angus M. MacLeod
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Patent number: 5324733Abstract: A class of spirocyclic piperidine derivatives are selective ligands at sigma recognition sites and are therefore useful in the treatment and/or prevention of psychiatric disorders. The claimed compounds are of the formula ##STR1## wherein, A and B are hydrogen, Q is a bond, R.sup.11, R.sup.12, and R.sup.13 are as defined in the specification.Type: GrantFiled: April 22, 1993Date of Patent: June 28, 1994Assignee: Merck Sharpe & Dohme Ltd.Inventors: David C. Billington, Mark S. Chambers
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Patent number: 5324723Abstract: 1,3-Oxazole and 1,3-thiazole compounds of formula I, and their pharmaceutically acceptable salts and prodrugs: ##STR1## wherein X represents oxygen or sulphur;R.sup.1 represents a non-aromatic azacyclic or azabicyclic ring system.Type: GrantFiled: July 1, 1993Date of Patent: June 28, 1994Assignee: Merck Sharpe & Dohme Ltd.Inventors: Raymond Baker, John Saunders, Roger J. Snow, Graham A. Showell