Abstract: A class of pyridazine derivatives, substituted in the 4-position by an optionally substituted heteroaromatic ring, being selective ligands for GABAA receptors, in particular having high affinity for the ?2 and/or ?3 and/or ?5 subunit thereof, 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:
August 4, 2003
Date of Patent:
June 3, 2008
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Stephen Robert Fletcher, Angus Murray MacLeod, Monique Bodil Van Niel, Kevin Wilson
Abstract: Compounds of formula (I) are disclosed: wherein R4 is an alkenyl group of defined structure. The compounds inhibit gamma-secretase, and hence are useful for treatment of Alzheimer's disease.
Type:
Grant
Filed:
April 24, 2003
Date of Patent:
May 13, 2008
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Jose Luis Castro Pineiro, Joanne Claire Hannam, Timothy Harrison, Andrew Madin, Mark Peter Ridgill
Abstract: A class of compounds is disclosed, comprising sulphonamido-substituted bridged bicycloalkyl structures. The compounds are inhibitors of gamma-secretase, and hence are useful in the treatment of and/or prevention of Alzheimer's disease.
Inventors:
Patrice Charles Belanger, Ian James Collins, Joanne Claire Hannam, Timothy Harrison, Stephen John Lewis, Andrew Madin, Edward Giles McIver, Alan John Nadin, Joseph George Neduvelil, Mark Steven Shearman, Adrian Leonard Smith, Timothy Jason Sparey, Graeme Irvine Stevenson, Martin Richard Teall
Abstract: The present invention provides a compound of formula (I): in which Ar and R1 are phenyl or a heteroaromatic group, R2 is generally hydrogen, R3 is hydrogen or alkyl and X, Y and Z are generally CH or N as VR-1 antagonists; or a pharmaceutically acceptable salt thereof; pharmaceutical compositions comprising it; its use in therapy; use of it to manufacture medicaments to treat pain or inflammation; and methods of treating pain or inflammation
Type:
Grant
Filed:
April 5, 2004
Date of Patent:
February 12, 2008
Assignee:
Merck Sharp & Dohme Limited
Inventors:
Peter Blurton, Frank Burkamp, Stephen Robert Fletcher, A. Brian Jones, Edward Giles McIver
Abstract: Compounds of formula I: selectively inhibit production of A?(1-42) and hence are useful in treatment or prevention of disease associated with deposition of ?-amyloid in the brain.
Type:
Application
Filed:
October 20, 2005
Publication date:
January 24, 2008
Applicant:
MERCK SHARP & DOHME LTD.
Inventors:
Joanne Hannam, Janusz Kulagowski, Andrew Madin, Mark Ridgill, Eileen Seward
Abstract: Novel sulphones of formula I are disclosed: The compounds modulate the processing of amyloid precursor protein by gamma-secretase, and hence are useful in the treatment or prevention of Alzheimer's disease.
Type:
Grant
Filed:
October 28, 2005
Date of Patent:
December 4, 2007
Assignee:
Merck Sharp + Dohme
Inventors:
Ian Churcher, Kevin Dinnell, Timothy Harrison, Sonia Kerrad, Alan John Nadin, Paul Joseph Oakley, Duncan Edward Shaw, Martin Richard Teall, Susannah Williams, Brian John Williams
Abstract: The invention provides the combined use of an inhibitor of formation or release of ?-amyloid and a nitric oxide releaser for the treatment or prevention of Alzheimer's disease.
Abstract: The present invention relates to the synthesis of intermediates for the preparation of compounds of formula (A): wherein n is 2 or 3 and various salt forms of these compounds.
Inventors:
Brian Christopher Bishop, Karel Marie Joseph Brands, Ian Frank Cottrell, Cameron John Cowden, Antony John Davies, Stephen Philip Keen, David Ross Lieberman, Gavin William Stewart
Abstract: There is provided an assay for identifying compounds which interact with the ?-secretase complex, in particular compounds that lower the production of A?42.
Abstract: Compounds of formula I are disclosed: in which X is a 5-membered heteroaryl ring and R is as defined herein. The compounds are inhibitors of the processing of APP by gamma-secretase, and hence are useful in the treatment or prevention of Alzheimer's disease.
Type:
Grant
Filed:
March 2, 2006
Date of Patent:
October 16, 2007
Assignee:
Merck Sharp & Dohme Limited
Inventors:
Ian James Collins, Laura Catherine Cooper, Timothy Harrison, Linda Elizabeth Keown, Andrew Madin, Mark Peter Ridgill
Abstract: A class of 8-fluoro-3-phenylimidazo[1,2-?]pyridine derivatives, substituted at the meta position of the phenyl ring by an optionally substituted aryl or heteroaryl group, or by a pyrrolidinonyl group, which is directly attached or bridged by an oxygen atom or by a —NH— or —OCH2— linkage, being selective ligands for GABAA receptors, in particular having high affinity for the ?2 and/or ?3 and/or ?5 subunit thereof, 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:
May 23, 2003
Date of Patent:
October 9, 2007
Assignee:
Merck Sharp & Dohme Limited
Inventors:
Simon Charles Goodacre, David James Hallett, Alexander Charles Humphries, Philip Jones, Sarah Margaret Kelly, Kevin John Merchant, Kevin William Moore, Michael Reader
Abstract: Substituted carbocyclic sulphonamide derivatives of formula (I), in which n is 0 or 1 and the other variables are as defined in the claims, are selective 5-HT7 receptor antagonists and are thereby effective in the treatment of a variety of neurological conditions, including depression and sleep disorders.
Type:
Grant
Filed:
November 29, 2002
Date of Patent:
October 2, 2007
Assignee:
Merck Sharp & Dohme Limited
Inventors:
Neil Roy Curtis, Peter Alan Hunt, Janusz Jozef Kulagowski
Abstract: A novel process for preparing cyclohexanone derivatives of formula (I) is described. The products are useful as gamma secretase inhibitors, or as intermediates in the synthesis of other gamma secretase inhibitors.
Type:
Grant
Filed:
July 30, 2003
Date of Patent:
October 2, 2007
Assignees:
Merck Sharp & Dohme Limited, Merck & Co., Inc.
Inventors:
Karel Marie Joseph Brands, Antony John Davies, Paul Joseph Oakley, Jeremy Peter Scott, Duncan Edward Shaw, Martin Richard Teall
Abstract: The present invention relates compounds of the formula (I); wherein R1, R2, R3, R4, R5, R6, R7, R8, and R10 represent a variety of substituents; A represents NR9 or O; B represents a bond, CH2, NR9 or O, wherein one or both hydrogen atoms in said CH2 moiety may be replaced with one or both of R7 and R8, or alternatively, one of the hydrogen atoms in said CH2 moiety together with a hydrogen atom from an adjacent carbon are replaced by a double bond; with the proviso that when A is O, then B is NR9; n is zero, 1 or 2; and pharmaceutically acceptable salts thereof.
Type:
Grant
Filed:
September 6, 2002
Date of Patent:
September 4, 2007
Assignee:
Merck Sharp & Dohme Limited
Inventors:
Jose Luis Castro Pineiro, Duncan Edward Shaw, Brian John Williams
Abstract: The present invention is directed to the improved synthesis of compounds of formula (I) an intermediate compound which is useful in the synthesis of the anticancer agents known as PSA conjugates.
Inventors:
Michael Stewart Ashwood, Brian Christopher Bishop, Ian Frank Cottrell, Khateeta Moneek Emerson, David Hands, Guo Jie Ho, Joseph Edward Lynch, Yao Jun Shi, Robert Darrin Wilson
Abstract: The present invention relates compounds of the formula (I): wherein R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 represent a variety of substituents, ring A is a phenyl or pyridyl ring; d is zero, 1 or 2; and pharmaceutically acceptable salts and N-oxides thereof.
Type:
Grant
Filed:
June 10, 2002
Date of Patent:
August 7, 2007
Assignee:
Merck Sharp & Dohme Limited
Inventors:
Jose Luis Castro Pineiro, Kevin Dinnell, Jason Matthew Elliott, Gregory John Hollingworth, Duncan Edward Shaw, Christopher John Swain
Abstract: A class of 8-fluoroimidazo[1,2-?]pyridine derivatives, substituted at the 3-position by an optionally substituted five-membered or six-membered heteroaromatic ring, being selective ligands for GABAA receptors, in particular having high affinity for the ?2 and/or ?3 and/or ?5 subunit thereof, 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:
May 23, 2003
Date of Patent:
June 5, 2007
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Wesley Peter Blackaby, Jose Luis Castro Pineiro, Simon Charles Goodacre, David James Hallett, Alexander Charles Humphries, Philip Jones, Kevin John Merchant, Michael Reader
Abstract: The present invention provides a compound of formula I: wherein X1 represents hydrogen, halogen, C1-6 alkyl, trifluoromethyl or C1-6 alkoxy; X2 represents hydrogen or halogen; Y represents a chemical bond, an oxygen atom, or a —NH— linkage; Z represents an optionally substituted aryl or heteroaryl group; R1 represents hydrogen, hydrocarbon, a heterocyclic group, halogen, cyano, trifluoromethyl, nitro, —ORa, —SRa, —SORa, —SO2Ra, —SO2NRaRb, —NRaRb, —NRaCORb, —NRaCO2Rb, —CORa, —CO2Ra, —CONRaRb or —CRa?NORb; and Ra and Rb independently represent hydrogen, hydrocarbon or a heterocyclic group; pharmaceutical compositions comprising this compound and methods of treating and/or preventing anxiety and convulsions using it.