Patents Assigned to Merck Sharp & Dohme Ltd.
  • Patent number: 5861407
    Abstract: A class of substituted 1,2,3,6-tetrahydropyridine derivatives are disclosed that are ligands for dopamine receptor subtypes within the body. These compounds are therefore useful in the treatment and/or prevention of disorders of the dopamine system, in particular schizophrenia or depression.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: January 19, 1999
    Assignee: Merck Sharp & Dohme, Ltd.
    Inventors: Neil Roy Curtis, Janusz Jozef Kulagowski, Paul David Leeson, Ian Michael Mawer, Mark Peter Ridgill
  • Patent number: 5854268
    Abstract: A class of substituted azetidine, pyrrolidine and piperidine derivatives are selective agonists of 5-HT.sub.1 -like receptors, being potent agonists of the human 5-HT.sub.1D.alpha. receptor subtype whilst 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, whilst eliciting fewer side-effects, notably adverse cardiovascular events, than those associated with non-subtype-selective 5-HT.sub.1D receptor agonists.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: December 29, 1998
    Assignee: Merck Sharp & Dohme, Ltd.
    Inventors: Raymond Baker, Sylvie Bourrain, Jose Luis Castro Pineiro, Mark Stuart Chambers, Alexander Richard Guiblin, Sarah Christine Hobbs, Richard Alexander Jelley, Andrew Madin, Victor Giulio Matassa, Austin John Reeve, Michael Geoffrey Russell, Graham Andrew Showell, Francine Sternfeld, Leslie Joseph Street, Monique Bodil Van Niel
  • Patent number: 5854247
    Abstract: A class of N-substituted piperazine, piperadine and tetrahyrdopyridine derivatives of formula (I), further substituted at the 4-position by an optionally substituted aryl-alkyl or heteroaryl-alkyl moiety, are selective agonists of 5-HT.sub.1 -like receptors, being potent agonists of the human 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, whilst eliciting fewer side-effects, notably adverse cardiovascular events, than those associated with non-subtype-selective 5-HT.sub.1D receptor agonists. In formula (I) Z represents --SO.sub.2 NR.sup.5 R.sup.6, or a group of formula (b).
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: December 29, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Raymond Baker, Andrew Madin, Victor Guilio Matassa, Leslie Joseph Street
  • Patent number: 5849746
    Abstract: A class of 1,4-disubstituted piperazine derivatives, further substituted on one of the carbon atoms of the piperazine ring, are selective agonists of 5-HT.sub.1 -like receptors, being potent agonists of the human 5-HT.sub.1D.alpha. receptor subtype whilst 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: Grant
    Filed: July 22, 1997
    Date of Patent: December 15, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Mark Stuart Chambers, Angus Murray MacLeod, Victor Giulio Matassa
  • Patent number: 5849765
    Abstract: A class of 1,2,3,6-tetrahydropyridine derivatives, substituted in the 4-position by a fused bicyclic heteroaromatic moiety and in the 1-position by an optionally substituted benzyl moiety, are ligands for dopamine receptor subtypes within the body, in particular the D.sub.4 subtype, and are therefore useful in the treatment and/or prevention of disorders of the dopamine system, in particular schizophrenia or depression.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: December 15, 1998
    Assignee: Merck Sharp & Dohme, Ltd.
    Inventors: Neil Roy Curtis, Janusz Jozef Kulagowski, Paul David Leeson, Kevin William Moore, Andrew Pate Owens, Martin Richard Teall
  • Patent number: 5837715
    Abstract: A class of substituted 3-fluoro-4-aminopiperidine derivatives are selective agonists of 5-HT.sub.1 -like receptors, being potent agonists of the human 5-HT.sub.1D.sbsb..alpha. receptor subtype whilst possessing at least a 10-fold selective affinity for the 5-HT.sub.1D.sbsb..alpha. receptor subtype relative to the 5-HT.sub.1D.sbsb..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: Grant
    Filed: July 17, 1997
    Date of Patent: November 17, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: J. L. Castro Pineiro, M. G. Russell
  • Patent number: 5830892
    Abstract: The present invention provides compounds of formula (I), wherein R.sup.1 is a 5- or 6-membered aromatic heterocyclic group containing 1, 2, 3 or 4 heteroatoms selected from nitrogen, oxygen and sulphur, which group is optionally substituted; R.sup.2 is hydrogen, halogen, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, CF.sub.3, OCF.sub.3, NO.sub.2, CN, SR.sup.a, SOR.sup.a, SO.sub.2 R.sup.a, CO.sub.2 R.sup.a, CONR.sup.a R.sup.b, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl or C.sub.1-4 alkyl substitued by C.sub.1-4 alkoxy, where R.sup.a and R.sup.a R.sup.b each independently represent hydrogen or C.sub.1-4 alkyl; R.sup.3 is hydrogen, halogen, C.sub.1-6 alkyl, C.sub.1-6 -alkoxy substituted by C.sub.1-4 alkoxy or CF.sub.3 ; R.sup.4, R.sup.5, R.sup.6, R.sup.9a, R.sup.9b, A, X and Y are as defined in the specification; and m is zero or , and pharmaceutically acceptable salts and prodrugs thereof. The compounds are of particular use in the treatment or prevention of pain, inflammation, migraine, emesis and pos therpetic neuralgia.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: November 3, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Raymond Baker, Jason Matthew Elliott, Graeme Irvine Stevenson, Christopher John Swain
  • Patent number: 5824678
    Abstract: The present invention relates to compounds of formula (I) ##STR1## wherein X is --NR.sup.6 R.sup.7 or C-- or N-linked imidazolyl; Y is hydrogen or C.sub.1-4 alkyl optionally substituted by hydroxy; R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are selected from a variety of suitable aromatic substituents; R.sup.6 is hydrogen, C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, phenyl, or C.sub.2-4 alkyl substituted by C.sub.1-4 alkoxy or hydroxy; R.sup.7 is hydrogen, C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkyl C.sub.1-4 alkyl, phenyl, or C.sub.2-4 alkyl substituted by one or two of C.sub.1-4 alkoxy, hydroxy or a 4, 5 or 6 membered heteroaliphatic ring containing one or two heteroatoms selected from N, O and S; or NR.sup.6 R.sup.7 is a saturated or partially saturated heterocyclic ring of 4 to 7 ring atoms, optionally containing one of O, S, NR.sup.8, S(O) or S(O).sub.2 and optionally substituted by one or two of hydroxy.sub.1-4 alkyl, C.sub.1-4 alkoxy C.sub.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: October 20, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Timothy Harrison, Andrew Pate Owens, Christopher John Swain
  • Patent number: 5814644
    Abstract: Compound of formula (I), or a pharmaceutically acceptable salt thereof or a prodrug thereof wherein E represents --CH.sub.2 -- or --CH.sub.2 CH.sub.2 --; R represents hydrogen or C.sub.1-6 alkyl; Q represents a moiety of formula Qa, Qb, Qc or Qd which 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 whilst manifesting fewer side-effects than those associated with classical neuroleptic drugs.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: September 29, 1998
    Assignee: Merck Sharp & Dohme, Ltd.
    Inventors: Janusz Jozef Kulagowski, Paul David Leeson, Mark Peter Ridgill
  • Patent number: 5811431
    Abstract: The present invention relates to compounds of formula (I), wherein n is zero, 1, 2 or 3; R represents C.sub.1-6 alkyl, C.sub.1-6 alkoxy, hydroxy, halogen, cyano, trifluoromethyl SO.sub.2 C.sub.1-6 alkyl, NR.sup.a R.sup.b, NR.sup.a COR.sup.b or CONR.sup.a R.sup.b, where R.sup.a and R.sup.b are each H, C.sub.1-4 alkyl, phenyl or trifluoromethyl; R.sup.1 represents phenyl optionally substituted by 1, 2 or 3 of C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, --O(CH.sub.2).sub.p O-- (where p is 1 or 2), halogen, cyano, nitro, trifluoromethyl, trimethylsilyl, OR.sup.a, SR.sup.a, SOR.sup.a, SO.sub.2 R.sup.a, NR.sup.a R.sup.b, NR.sup.a COR.sup.b, NR.sup.a CO.sub.2 R.sup.b, COR.sup.a, CO.sub.2 R.sup.a or CONR.sup.a R.sup.b ; naphthyl; benzhydryl; or benyl, where the naphthyl group or each phenyl moiety of benzyl and benzhydryl may be substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or trifluoromethyl; R.sup.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: September 22, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Tamara Ladduwahetty, Richard Thomas Lewis, Angus Murray MacLeod, Kevin John Merchant
  • Patent number: 5807857
    Abstract: Compounds of formula (I), or a salt or prodrug thereof, wherein Z represents an optionally substituted five-membered heteroaromatic ring selected from furan, thiophene, pyrrole, oxazole, thiazole, isoxazole, isothiazole, imidazole, pyrazole, oxadiazole, thiadiazole, triazole and tetrazole; E represents a chemical bond or a straight or branched alkylene chain containing from 1 to 4 carbon atoms; Q represents a straight or branched alkylene chain containing from 1 to 6 carbon atoms, optionally substituted in any position by a hydroxy group; T represents nitrogen or CH; U represents nitrogen or C--R.sup.2 ; V represents oxygen, sulphur or N--R.sup.3 ; --F--G-- represents --CH2--N--, --CH2--CH-- or --CH.dbd.C--; R.sup.1 represents C.sub.3-6 alkenyl, C.sub.3-6 alkynyl, aryl(C.sub.1-6)alkyl or heteroaryl(C.sub.1-6)alkyl, any of which groups may be optionally substituted; and R.sup.2 and R.sup.3 independently represent hydrogen or C.sub.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: September 15, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Jose Luis Castro Pineiro, Mark Stuart Chambers, Sarah Christine Hobbs, Austin John Reeve, Graham Andrew Showell, Leslie Joseph Street, Victor Giulio Matassa
  • Patent number: 5760018
    Abstract: The present invention is directed to certain compounds represented by structural formula I: ##STR1## or a pharmaceutically acceptable salt thereof wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, A.sup.1, A.sup.2, X, m and n are defined herein. The compounds of this invention are tachykinin receptor antagonists and are of particular use in the treatment of pain, inflammation, migraine and emesis.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: June 2, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Raymond Baker, Richard Thomas Lewis, Angus Murray MacLeod, Graeme Irvine Stevenson
  • Patent number: 5747491
    Abstract: The present invention relates to compounds of formula (I): wherein X is N or CH; and pharmaceutically acceptable salts and prodrugs thereof. The compounds are of p articular use in the treatment of pain, inflammation, migraine and emesis.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: May 5, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Karen Elizabeth Haworth, Eileen Mary Seward, Christopher John Swain, Martin Richard Teall
  • Patent number: 5719149
    Abstract: The present invention relates to compounds of formula (I) wherein: R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are selected from a variety of suitable aromatic substituents; R.sup.6 is hydrogen, C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, phenyl, or C.sub.2 -alkyl substituted by C.sub.1-4 alkoxy or hydroxy; R.sup.7 is hydrogen, C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, phenyl, C.sub.2-4 alkyl substituted by C.sub.1-4 alkoxy or hydroxy, or the group C(.dbd.NR.sup.c)NR.sup.a R.sup.b ; or R.sup.6 and R.sup.7, together with the nitrogen atom to which they are attached, form an optionally substituted saturated heterocyclic ring of 4 to 7 ring atoms which may optionally contain in the ring one oxygen or sulphur atom or a group selected from NR.sup.8, S(O) or S(O).sub.2 ; or R.sup.6 and R.sup.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: February 17, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Paul Finke, Timothy Harrison, Richard Thomas Lewis, Angus Murray MacLeod, Andrew Pate Owens
  • Patent number: 5719057
    Abstract: 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: Grant
    Filed: April 5, 1995
    Date of Patent: February 17, 1998
    Assignee: Merck Sharpe & Dohme Ltd.
    Inventors: Karen Louise Hadingham, Beatrice le Bourdelles, Paul John Whiting, Peter Baxter Wingrove
  • Patent number: 5717104
    Abstract: A process for preparing tryptamine derivatives and related compounds having a 1,2,4-triazol-1-yl moiety within the molecule comprises reacting 4-amino-1,2,4-triazol with a nitrobenzene derivative containing a readily displaceable group; deaminating the aminotriazolium salt thereby obtained by treatment with nitrous acid followed by neutralisation; reducing the triazolyl-ni-trobenzene derivative thereby obtained by transfer hydrogenation; treating the triazolyl-aniline derivative thereby obtained with nitrous acid and then with an alkali metal sulphate, followed by acidification; and subsequently reacting the triazolyl-hydrazine derivative thereby obtained in situ with a suitable carbonyl compound, to obtain the required triazolyl-indole derivative.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: February 10, 1998
    Assignee: Merck, Sharp & Dohme, Ltd.
    Inventor: Peter Grenville Houghton
  • Patent number: 5714498
    Abstract: The invention is directed to substituted benzimidazole compounds which are ligands for dopamine receptor subtypes used in the treatment of the dopamine system.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: February 3, 1998
    Assignee: Merck, Sharp, & Dohme, Ltd.
    Inventors: Janusz Jozef Kulagowski, Paul David Leeson
  • Patent number: 5712285
    Abstract: A class of pyrrolo?2,3 -b!pyridine derivatives, linked via the 3-position thereof by a methylene group to a tetrahydropyridinyl moiety, the latter moiety being substituted in turn by an aryl- or heteroaryl-substituted divalent monocyclic radical, are ligands for dopamine receptorsubtypes within the body, in particular the D.sub.4 subtype, and are accordingly of use in the treatment and/or prevention of disorders of the dopamine system, including schizophrenia and depression.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: January 27, 1998
    Assignee: Merck, Sharp & Dohme, Ltd.
    Inventors: Neil Roy Curtis, Janusz Jozef Kulagowski, Paul David Leeson, Mark Peter Ridgill
  • Patent number: 5710161
    Abstract: The present invention relates to compounds of the formula (I): ##STR1## wherein Ar.sup.1 represents optionally substituted phenyl; Ar.sup.2 represents aryl; benzhydryl; or benzyl; wherein each aryl and heteroaryl and each phenyl moiety of benzyl and benzhydryl may be substituted;R.sup.1 represents H or a group of the formula Z-R.sup.2 ;R.sup.2 represents H, CO.sub.2 R.sup.7, CONR.sup.7 R.sup.8, NR.sup.7 R.sup.8, NR.sup.7 COR.sup.9, NR.sup.7 SO.sub.2 R.sup.8, trifluoromethyl, heteroaryl or --O-heteroaryl, each of which heteroaryl groups are as previously defined and may be optionally substituted, or R.sup.2 represents a group selected from phenyl, piperazinyl, piperidinyl, spiro-fused piperidinyl, tetrahydroquinolinyl or tetrahydroisoquinolinyl, each of which may be substituted;R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each independently represent H or C.sub.1-4 alkyl;R.sup.7 and R.sup.8 each independently represent H, C.sub.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: January 20, 1998
    Assignee: Merck, Sharp & Dohme, Ltd.
    Inventors: Tamara Ladduwahetty, Angus Murray MacLeod
  • Patent number: 5710015
    Abstract: The present invention relates to the cloning of novel cDNA sequences encoding human and rat inositol monophosphatase (IMP); to the preparation of IMP enzyme by incorporation of the cDNAs into an expression vector and the expression thereof in recombinant host cells; and to the use of the enzyme thereby obtained in designing and developing medicaments which are inhibitors of human or rat IMP.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: January 20, 1998
    Assignee: Merck, Sharp & Dohme, Ltd.
    Inventors: George McAllister, Paul John Whiting