Abstract: The present invention relates to compounds of the formula (I):
wherein
R1 is fluorine or trifluoromethyl;
R2 is fluorine or trifluoromethyl;
R3 is methyl or hydroxymethyl;
R4 represents a variety of substituents; and
n is zero, 1 or 2;
and pharmaceutically acceptable salts thereof.
The compounds are of particular use in the treatment or prevention of depression, anxiety, pain, inflammation, migaine, emesis or postherpetic neuralgia.
Type:
Grant
Filed:
August 20, 2001
Date of Patent:
December 3, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Jose Luis Castro Pineiro, Simon Neil Owen, Eileen Mary Seward, Christopher John Swain, Brian John Williams
Abstract: A class of tryptamine analogues bearing an optionally substituted phenyl nucleus at the 2-position are selective antagonists of the human 5-HT2A receptor and are therefore useful as pharmaceutical agents, especially in the treatment and/or prevention of adverse neurological conditions, including psychotic disorders such as schizophrenia.
Type:
Grant
Filed:
March 3, 2000
Date of Patent:
November 26, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Jose Luis Castro Pineiro, Steven Michael Hutchins, Stephen John Lewis, Michael Rowley, Adrian Leonard Smith, Graeme Irvine Stevenson
Abstract: Substituted or 6,7-ring fused 1,2,3-triazolo[4,5-b]pyridine derivatives are selective ligands for GABAA receptors useful in the treatment of disorders of the central nervous system.
Type:
Grant
Filed:
November 7, 2000
Date of Patent:
November 12, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Howard Barff Broughton, Jose Luis Castro Pineiro, Ian James Collins, Leslie Joseph Street
Abstract: Compounds according to Formula (I) or a salt thereof are selective antagonists of the human 5-HT2A receptor useful for treatment of adverse conditions of the central nervous system:
Type:
Grant
Filed:
January 12, 2001
Date of Patent:
November 12, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Christopher Richard Moyes, Michael Rowley
Abstract: The present invention relates compounds of the formula (I):
wherein
Z is —CR9R10CH2— or —CH2CR9R10—;
and R1, R2, R3, R4, R5 and R6 are as defined herein. The compounds are of particular use in the treatment or prevention of depression, anxiety, pain, inflammation, migaine, emesis or postherpetic neuralgia.
Type:
Grant
Filed:
April 1, 2002
Date of Patent:
November 12, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Ian Thomas Huscroft, Janusz Jozef Kulagowski, Piotr Antoni Raubo
Abstract: Compounds according to Formula (I):
or a salt or prodrug thereof, have good affinity as ligands for the alpha2 and/or alpha3 subunit of the human GABAA receptor and are useful for treatment of disorders of the central nervous system, including anxiety and convulsions.
Type:
Grant
Filed:
June 8, 2001
Date of Patent:
November 5, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
William Robert Carling, Andrew Mitchinson, Kevin William Moore, Michael Geoffrey Russell, Gayle Scott, Leslie Joseph Street
Abstract: The present invention relates to compounds of the formula (I):
wherein:
Het represents a heterocyclic residue selected from:
where the dotted line in (b) represents an optional double bond;
A completes a fused pyridine ring; and
B completes a fused benzene or pyridine ring.
The compounds are of particular use in the treatment or prevention of depression, anxiety, pain, inflammation, migaine, emesis or postherpetic neuralgia.
Type:
Grant
Filed:
July 11, 2001
Date of Patent:
November 5, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Kevin Dinnell, Jason Matthew Elliott, Gregory John Hollingworth, Duncan Edward Shaw
Abstract: The present invention relates to compounds of the formula (I):
wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 and n are defined herein. The compounds are of particular use in the treatment or prevention of depression, anxiety, pain, inflammation, migraine, emesis and postherpetic neuralgia.
Type:
Grant
Filed:
September 10, 2001
Date of Patent:
October 1, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Simon Neil Owen, Eileen Mary Seward, Christopher John Swain, Brian John Williams
Abstract: The present invention provides nucleotide sequences encoding the &agr;4 and &dgr; subunits of the human GABAA receptor, preparations of &agr;4 and &dgr; receptor subunit proteins, preparations of receptors including &agr;4 or &dgr; polypeptides, expression vectors including the nucleotide sequences, stably co-transfected eukaryotic cells and methods of their preparation and methods of screening for and designing medicaments which act upon the GABAA receptor.
Type:
Grant
Filed:
June 19, 1997
Date of Patent:
September 24, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Beatrice Le Bourdelles, Paul John Whiting
Abstract: A combination of a muscarinic agonist and an inverse agonist of the GABAA &agr;5 receptor subtype useful in treating neurodegenerative conditions such as Alzheimer's Disease is disclosed.
Abstract: The invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof:
wherein X is CH2, O or S. The compounds inhibit gamma secretase without affecting Notch signalling, and hence find use in the treatment or prevention of Alzheimer's disease.
Abstract: A substituted triazolopyridazine derivative, its use in cognition enhancement therapy, compositions containing it and processes for its manufacture.
Type:
Grant
Filed:
July 24, 2000
Date of Patent:
September 10, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
William Robert Carling, Tamara Ladduwahetty, Angus Murray MacLeod, Kevin John Merchant, Kevin William Moore, Francine Sternfeld, Leslie Joseph Street
Abstract: A compound of formula I, or a salt or prodrug thereof:
wherein:
Z represents C1-6 alkyl, C3-7 cycloalkyl, C4-7 cycloalkenyl, aryl, C3-7 heterocycloalkyl, heteroaryl or di(C1-6)alkylamino, any of which groups may be optionally substituted;
R1 represents an optionally substituted five-membered heteroaromatic ring selected from oxazole, thiazole, isoxazole, isothiazole, imidazole, pyrazole, oxadiazole, thiadiazole, triazole and tetrazole; or
R1 represents an optionally substituted six-membered heteroaromatic ring selected from pyrazine, pyrimidine and pyridazine; and
R2 represents cyano(C1-6)alkyl, hydroxy(C1-6)alkyl, C3-7 cycloalkyl(C1-6)alkyl, propargyl, C3-7 heterocycloalkylcarbonyl(C1-6)alkyl, aryl(C1-6)alkyl or heteroaryl(C1-6)alkyl, any of which groups may be optionally substituted; its use in treating anxiety and pharmaceutical compositions comprising it; a subclass of compounds which are useful in enhancing cognition, such as Alzheimer's Disease, is also disclosed.
Type:
Grant
Filed:
August 27, 1998
Date of Patent:
September 3, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Tamara Ladduwahetty, Kevin John Merchant, Francine Sternfeld, Leslie Joseph Street
Abstract: The present invention relates to the use, for the preparation of drugs to increase the survival rate of transplant patients, including renal and heart transplant patients, of a therapeutically effective amount of an angiotension II receptor antagonist compound, such as the class of substituted imidazoles represented by formula (I) and in particular by losartan potassium, 2-butyl-4-chloro-[(2′-tetrazol-5-yl)biphenyl-4-il]methyl]-5-(hydroxymethyl)imidazole potassium salt.
Abstract: The present invention relates to a method of enhancing cognition without producing convulsions which method comprises administering to a subject in need thereof a cognition enhancing amount of a compound which is a GABAa selective alpha5 receptor inverse agonist.
Abstract: The present invention relates to a process for the preparation of morpholine derivatives of formula (I) which are useful as a therapeutic agents.
Type:
Grant
Filed:
September 10, 2001
Date of Patent:
June 18, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Ian Frank Cottrell, Ulf H Dolling, David Hands, Robert Darrin Wilson
Abstract: A pharmaceutical product comprising an SSRI and a non-sedating anxiolytic compound, which is a modulator of the benzodiazepine binding site of the human GABAA receptor, having a binding affinity for the &agr;3 subunit of the human GABAA receptor of 10 nM or less, which elicits at least a 40% potentiation of the GABA EC20 response in stably transfected recombinant cell lines expressing the &agr;3 subunit of &agr;3 and which elicits at most a 30% potentiation of the GABA EC20 response in stably transfected cell lines expressing the &agr;1 subunit of the human GABAA receptor is disclosed for simultaneous, separate or sequential administration.
Abstract: 4-oxo-tetrahydroindozole-3-carboxamide compounds according to Formula (I), or a pharmaceutically acceptable salt thereof, are GABA-A Alpha 5 ligands useful for enhancing cognition:
Type:
Grant
Filed:
June 15, 2001
Date of Patent:
May 28, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Helen Jane Bryant, Mark Stuart Chambers
Abstract: Compounds according to Formula (I) or a pharmaceutically acceptable salt thereof are GABA-A Alpha 5 ligands useful for enhancing cognition:
where A is C1-6alkyl, C2-6alkenyl, C2-6alkynyl, C3-6cycloalkyl, arylC1-6alkyl, or aryl wherein the aryl group is optionally substituted by halogen, C1-6alkyl, CF3, CN, NO2 or NH2, NR1R10, S(O)pR1, heteroarylC1-6alkyl or heteroaryl where heteroaryl is a 5- or 6-membered heteroaromatic ring as defined for B; and B is phenyl or a 5-membered ring having one or two unsaturations containing 1, 2, 3, or 4 heteroatoms chosen from O, N and S provided that not more than one heteroatom is other than N, a 6-membered heteroaromatic ring containing 1, 2, 3 or 4 nitrogen atoms, each of which rings is optionally substituted by one or more substituents.
Type:
Grant
Filed:
November 6, 2000
Date of Patent:
May 28, 2002
Assignee:
Merck Sharp & Dohme Limited
Inventors:
Howard Barff Broughton, Helen Jane Bryant, Mark Stuart Chambers, Neil Roy Curtis