Abstract: A class of substituted 1,2,4-triazolo[4,3-]pyridazine derivatives, possessing an optionally substituted cycloalkyl, phenyl or heteroaryl substituent at the 3-position, a substituted alkoxy moiety at the 6-position, and an optionally substituted bicycloalkyl ring system at the 7-position, are selective ligands for GABAA receptors, in particular having high affinity for the &agr;2 and/or &agr;3 subunit thereof, and are accordingly of benefit in the treatment and/or prevention of disorders of the central nervous system, including anxiety and convulsions.
Type:
Grant
Filed:
February 19, 2002
Date of Patent:
August 19, 2003
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
William Robert Carling, Alexander Richard Guiblin, Kevin William Moore, Christopher Richard Moyes, Michael Rowley, Leslie Joseph Street
Abstract: The present invention is concerned with novel processes for the preparation of (2R, 2-alpha-R, 3a)-2-[1-[3,5-bis(trifluoromethyl)phenyl]ethoxy-3-(4-fluorophenyl)-1,4-oxazine. This compound is useful as an intermediate in the synthesis of compounds which possess pharmacological activity.
Type:
Grant
Filed:
June 8, 2001
Date of Patent:
July 29, 2003
Assignee:
Merck & Co., Inc.
Inventors:
Karel M. Jos Brands, Fuh-Rong Tsay, Karen M. Conrad, Matthew M. Zhao
Abstract: A class of pyrido[2,3-d]pyridazine derivatives, possessing an optionally substituted cycloalkyl, phenyl or heteroaryl substituent at the 8-position, a substituted alkoxy moiety at the 2-position, and a range of substituents at the 3-position, are selective ligands for GABAA receptors, in particular having high affinity for the &agr;2 and/or &agr;3 and/or &agr;5 subunit thereof, and are accordingly of benefit in the treatment and/or prevention of adverse conditions of the central nervous system, including anxiety, convulsions and cognitive disorders.
Type:
Grant
Filed:
February 20, 2002
Date of Patent:
July 15, 2003
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
William Robert Carling, Jose Luis Castro Pineiro, Andrew Mitchinson, Leslie Joseph Street
Abstract: This invention is concerned with a novel polymorphic form of the compound 2-(R)-(1-(R)-(3,5-bis(trifluoromethyl)-phenyl)-ethoxy)-3-(S)-(4-fluoro)phenyl-4-(3-(5-oxo-1H,4H-1,2,4-triazolo)methylmorpholine which is a tachykinin receptor antagonist useful in the treatment or prevention of disorders of the central nervous system, inflammatory diseases, pain or migraine, asthma, and emesis. The instant polymorphic form has advantages over the other known forms of 2-(R)-(1-(R)-(3,5-bis(trifluoro-methyl)-phenyl)ethoxy)-3-(S)-(4-fluoro)phenyl-4-(3-(5-oxo-1H,4H-1,2,4-triazolo)methylmorpholine in terms of thermodynamic stability and suitability for inclusion in pharmaceutical formulations.
Abstract: 1,2,4-triazolo[4,3-b]pyridazine derivatives, possessing a fluoro-substituted phenyl ring at the 3-position and a heteroaryl-alkoxy moiety at the 6-position, are selective ligands for GABAA receptors, in particular having high affinity for the &agr;2 and/or &agr;3 subunit thereof, are useful in the treatment of anxiety and convulsions.
Type:
Grant
Filed:
June 28, 2000
Date of Patent:
June 17, 2003
Assignee:
Merck Sharp & Dohme Limited
Inventors:
William Robert Carling, Jose Luis Castro Pineiro, Ian James Collins, Alexander Richard Guiblin, Timothy Harrison, Andrew Madin, Kevin William Moore, Michael Geoffrey Russell, Gayle Scott, Leslie Joseph Street
Abstract: This invention relates to the use of a tachykinin receptor antagonist for treating a psychosomatic or a psychoimmunological disorder in a patient.
Abstract: The present invention relates compounds of the formula (I):
wherein
X represents hydrogen or a C1-4alkyl group optionally substituted by a hydroxy group;
Y represents hydrogen, C1-6alkyl or C3-7cycloalkyl;
Z is —CR9R10CH2— or —CH2CR9R10—;
R represents hydrogen, fluorine, hydroxy, C1-6alkyl or C1-6alkoxy;
and R1, R2, R3, R4, R5 and R6 are as defined herein.
The compounds are of particular use in the treatment of depression, anxiety, pain, inflammation, migraine, emesis or postherpetic neuralgia.
Type:
Grant
Filed:
April 1, 2002
Date of Patent:
April 29, 2003
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Janusz Jozef Kulagowski, Piotr Antoni Raubo, Christopher George Thomson
Abstract: A class of substituted and/or ring-fused pyrazolo[3,4-b]pyridine derivatives, possessing an optionally substituted cycloalkyl, phenyl or heteroaryl substituent on the pyrazole nitrogen atom adjacent the pyridine nucleus, and an optionally substituted cycloalkyl-alkoxy, aryl-alkoxy or heteroaryl-alkoxy substituent on the carbon atom adjacent the pyridine ring nitrogen atom, are selective ligands for GABAA receptors, in particular having high affinity for the &bgr;2 and/or &bgr;3 subunit thereof, and are accordingly of benefit in the treatment and/or prevention of adverse neurological disorders, including anxiety and convulsions.
Type:
Grant
Filed:
June 14, 2002
Date of Patent:
April 1, 2003
Assignee:
Merck Sharp & Dohme Limited
Inventors:
Ian James Collins, Linda Elizabeth Keown, Leslie Joseph Street
Abstract: The present invention is concerned with 4-benzyl-2-hydroxy-1,4-oxazin-3-one, and novel processes for the preparation therof. This compound is useful as an intermediate in the synthesis of compounds which possess pharmacological activity.
Type:
Grant
Filed:
June 8, 2001
Date of Patent:
March 25, 2003
Assignee:
Merck & Co., Inc.
Inventors:
Louis S. Crocker, Karel M. Jos Brands, Todd D. Nelson, Philip J. Pye, Jonathan D. Rosen, Kai Rossen
Abstract: There is disclosed 3-(5-methylisoxazol-3-yl)-6-(1-methyl-1,2,3-triazol-4-yl)methyloxy-1,2,4-triazolo[3,4-a]phthalazine in the form of a dihydrate, a dehydrate of the dihydrate and a pentahydrate, pharmaceutical compositions comprising the forms, the use of the forms for enhancing cognition, processes for producing the forms, their incorporation in pharmaceutical compositions comprising pamoate ions and the use of such ions for solubilizing neutral molecules.
Abstract: A tachykinin antagonist is useful, alone or in conjunction with other agents, for altering circadian rhythmicity and alleviating circadian rhythm disorders and for enhancing and improving the quality of sleep.
Abstract: The present invention relates to compounds of the formula (I):
wherein R1a, R1b, R2, R3, R4, R5, X 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 4, 2001
Date of Patent:
February 11, 2003
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Kevin Tyler Chapman, Kevin Dinnell, Jason Matthew Elliott, Gregory John Hollingworth, Steven Michael Hutchins, Duncan Edward Shaw, Christopher Alan Willoughby
Abstract: The present invention relates to a process for the preparation of a compound of formula (I)
wherein Ts is a tosylate group and R is an alkyl group, an unsubstituted phenyl or substituted phenyl ring, or a benzyl or substituted benzyl group; which comprises:
(i) cyclising a compound of formula (II)
in the presence of a suitable catalyst; and
(ii) purifying and collecting the resultant compound of formula (I).
Type:
Grant
Filed:
February 27, 2001
Date of Patent:
February 4, 2003
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Michael Stewart Ashwood, Ian Frank Cottrell, Cameron John Cowden, Debra Jane Wallace
Abstract: The present invention is directed to compounds of the formula I:
(wherein R1, R2, R3, R4, R5, R7, R8, X, n, x and y are defined herein) which are useful as modulators of chemokine receptor activity. In particular, these compounds are useful as modulators of the chemokine receptors CCR-5 and/or CCR-3.
Type:
Grant
Filed:
June 8, 2000
Date of Patent:
January 14, 2003
Assignee:
Merck & Co., Inc.
Inventors:
Paul E. Finke, Jennifer L. Loebach, Malcolm Maccoss, Sander G. Mills
Abstract: The present invention is concerned with novel processes for the preparation of (R)-1-(3,5-bis(trifluoromethyl)phenyl)ethan-1-ol. This compound is useful as an intermediate in the synthesis of compounds which possess pharmacological activity.
Abstract: The present invention is directed to compounds of the formula I:
(wherein R1, R2, R3, R7, R8, X, Y, Z, x and y are defined herein) which are useful as modulators of chemokine receptor activity. In particular, these compounds are useful as modulators of the chemokine receptors CCR-5 and/or CCR-3.
Type:
Grant
Filed:
June 8, 2000
Date of Patent:
December 31, 2002
Assignee:
Merck & Co., Inc.
Inventors:
Paul E. Finke, Kevin T. Chapman, Malcolm Maccoss, Sander G. Mills, Bryan Oates
Abstract: 1,2,4-triazolo[4,3-b]pyridazine derivatives, possessing a difluoro-or tri-fluoro-substituted phenyl ring at the 3-position, a triazolyl moiety at the 6-position, and a tert-butyl group at the 7-position, are selective ligands for GABAA receptors, in particular having high affinity for the &agr;2 and/or &agr;3 subunit thereof, and are useful in the treatment of anxiety and convulsions.
Type:
Grant
Filed:
July 23, 2001
Date of Patent:
December 31, 2002
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
William Robert Carling, Jose Luis Castro Pineiro, Richard Thomas Lewis, Kevin William Moore, Leslie Joseph Street
Abstract: The present invention is directed to pyrrolidine compounds of the formula I:
(wherein R1, R2, R3, R4, R5, R6 and n are defined herein) which are useful as modulators of chemokine receptor activity. In particular, these compounds are useful as modulators of the chemokine receptors CCR-5 and/or CCR-3.
Type:
Grant
Filed:
April 4, 2000
Date of Patent:
December 24, 2002
Assignee:
Merck & Co., Inc.
Inventors:
Charles G. Caldwell, Kevin T. Chapman, Jeffrey Hale, Dooseop Kim, Christopher Lynch, Malcolm MacCoss, Sander G. Mills, Christopher Willoughby, Scott Berk, Ronald M. Kim
Abstract: The present invention is directed to pyrrolidine compounds of the formula I:
(wherein R1, R2, R3, R4c, R4d, and R4f are defined herein) which are useful as modulators of chemokine receptor activity. In particular, these compounds are useful as modulators of the chemokine receptors CCR-3 and/or CCR-5.
Type:
Grant
Filed:
March 1, 2000
Date of Patent:
December 3, 2002
Assignee:
Merck & Co., Inc.
Inventors:
Jianming Bao, Robert K. Baker, William H. Parsons, Kathleen Rupprecht
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