Abstract: The present invention relates compounds of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each independently represents a phenyl group optionally substituted by a variety of substituents;R.sup.3 represents a variety of substituents;R.sup.4, R.sup.5, R.sup.6, and R.sup.7 each independently represents hydrogen or C.sub.1-6 alkyl;A represents --O-- or --S--;B represents --O--, --S--, --NR.sup.a -- or --CHR.sup.a --; andn is zero, 1, 2, 3, 4 or 5;or a pharmaceutically acceptable salt or a prodrug 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:
February 22, 2000
Date of Patent:
October 24, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Angus Murray MacLeod, Christopher John Swain, Monique Bodil van Niel
Abstract: The present invention relates to a process for the preparation of substantially pure N-((S)-(-)-.alpha.-methylbenzyl)-3-(S)-(4-fluorophenyl)-1,4-oxazin-2-one hydrochloride, which comprises selectively crystallising the (S,S)-diastereomer as the hydrochloride salt from a mixture of the (S,R)- and (S,S)-diastereomers in an organic solvent, and collecting the resultant crystalline product.
Type:
Grant
Filed:
September 8, 1999
Date of Patent:
October 10, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Michael Stewart Ashwood, Ian Frank Cottrell, Brian Christopher Bishops, John Simon Edwards
Abstract: The present invention is directed to compounds of the formula (I): ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.9a, R.sup.9b, m and n are as defined herein) which are tachykinin antagonists and which are particularly useful in the treatment of pain, inflammation, migraine, emesis and postherpetic neuralgia.
Type:
Grant
Filed:
August 13, 1998
Date of Patent:
October 3, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Jason Matthew Elliott, Fintan Kelleher, Christopher John Swain
Abstract: A class of substituted azetidine, pyrrolidine and piperidine derivatives of Formula I 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:
October 26, 1998
Date of Patent:
October 3, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Sylvie Bourrain, Angus Murray MacLeod, Graham Andrew Showell, Leslie Joseph Street
Abstract: The present invention relates to the treatment or prevention of depression and/or anxiety by the administration of a combination of CNS-penetrant NK-1 receptor antagonists and an antidepressant or anti-anxiety agent.
Type:
Grant
Filed:
December 19, 1997
Date of Patent:
September 12, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Emma Joanne Carlson, Nadia Melanie Rupniak
Abstract: The present invention provides methods for the treatment or prevention of major depressive disorder with anxiety without concomitant therapy with other anti-depressant or anti-anxiety agents which comprises oral administration of an orally active, long acting, CNS-penetrant NK-1 receptor antagonist and pharmaceutical compositions comprising such a NK-1 receptor antagonist.
Type:
Grant
Filed:
June 11, 1998
Date of Patent:
September 5, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Raymond Baker, Neil Roy Curtis, Jason Matthew Elliott, Timothy Harrison, Gregory John Hollingworth, Philip Stephen Jackson, Janusz Jozef Kulagowski, Nadia Melanie Rupniak, Eileen Mary Seward, Christopher John Swain, Brian John Williams
Abstract: A class of substituted 7,8-ring fused 1,2,4-triazolo[4,3-b]pyridazine derivatives as shown in Formula I, possessing an optionally substituted cycloalkyl, phenyl or heteroaryl substituent at the 3-position and a substituted alkoxy moiety at the 6-position, are selective ligands for GABA.sub.A receptors, in particular having high affinity for the .alpha.2 and/or .alpha.3 subunit therof, and are accordingly of benefit in the treatment and/or prevention of neurodegeneration arising from cerebral ischemia.
Abstract: A class of 3-substituted 3,7-diazabicyclo[3.3.0]octane derivatives, further substituted at the 7-position by an optionally substituted alkenyl, alkynyl, arylcarbonyl, 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 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.
Abstract: The present invention provides a method for the treatment or prevention of schizophrenic disorders using an orally active, long acting, CNS-penetrant NK-1 receptor antagonist and pharmaceutical compositions comprising such a NK-1 receptor antagonist.
Type:
Grant
Filed:
June 11, 1998
Date of Patent:
August 8, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Raymond Baker, Neil Roy Curtis, Jason Matthew Elliott, Timothy Harrison, Gregory John Hollingworth, Philip Stephen Jackson, Janusz Jozef Kulagowski, Nadia Melanie Rupniak, Eileen May Seward, Christopher John Swain, Brian John Williams
Abstract: The present invention provides methods for the treatment or prevention of amnestic disorders which comprises oral administration of an orally active, long acting, CNS-penetrant NK-1 receptor antagonist.
Type:
Grant
Filed:
December 1, 1997
Date of Patent:
August 1, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Raymond Baker, Neil Roy Curtis, Jason Matthew Elliott, Timothy Harrison, Gregory John Hollingworth, Philip Stephen Jackson, Janusz Jozef Kulagowski, Nadia Melanie Rupniak, Eileen Mary Seward, Christopher John Swain, Brian John Williams
Abstract: The present invention relates to certain 3-benzylaminopiperidines which are tachykinin receptor antagonists and are useful in the treatment or prevention of pain, inflammation, migraine, emesis and postherpetic neuralgia.
Type:
Grant
Filed:
June 9, 1998
Date of Patent:
August 1, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Raymond Baker, Jason Matthew Elliott, Christopher John Swain
Abstract: A method for the treatment or prevention of mania or hypomania is disclosed comprising administering 3-[2-cyclopropoxy-5-(trifluoromethoxy)phenyl]-6-phenyl-1-oxa-7-aza-spiro[4 .5]decane.
Abstract: The present invention provides the use of 2-(4-methoxyphenyl)-pyrazolo[4,3-c]quiniolin-3-one or a pharmaceutically acceptable salt thereof for the manufacture of a medicament for enhancing cognition, particularly in Alzheimer's Disease, a method of enhancing cognition and pharmaceutically acceptable salts such as the hemi camphor sulfonate.
Type:
Grant
Filed:
May 25, 1999
Date of Patent:
July 11, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Gerard Raphael Dawson, Angus Murray MacLeod, Guy Ralph Seabrook
Abstract: The present invention provides the use of an orally active, long acting, CNS-penetrant NK-1 receptor antagonist for the manufacture of a medicament adapted for oral administration for the treatment or prevention of stress disorders without concomitant therapy with other anti-stress agents, methods of treatment using such a NK-1 receptor antagonist and pharmaceutical compositions comprising it.
Type:
Grant
Filed:
June 9, 1999
Date of Patent:
July 11, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Raymond Baker, Neil Roy Curtis, Jason Matthew Elliott, Timothy Harrison, Gregory John Hollingworth, Philip Stephen Jackson, Janusz Jozef Kulagowski, Nadia Melanie Rupniak, Eileen Mary Seward, Christopher John Swain, Brian John Williams
Abstract: A class of fused tricyclic heteroaromatic compounds of formula (I) as defined in claim 1 or a salt thereof or a prodrug thereof, containing a fused pyrazole, oxazole or pyrimidine ring are ligands for dopamine receptor subtypes within the body and are therefore of use in the treatment and/or prevention of disorders of the dopamine system, such as schizophrenia.
Type:
Grant
Filed:
March 12, 1996
Date of Patent:
June 27, 2000
Assignee:
Merck Sharp & Dohme Limited
Inventors:
William Barnaby Davey, Paul David Leeson, Michael Rowley
Abstract: The present invention is directed to spiro-ketal derivatives of the formula (I): ##STR1## (wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.9a, R.sup.9b, m and n are defined herein) which are tachykinin antagonists and are useful, for example, in the treatment or prevention of pain, inflammation, migraine, emesis and postherpetic neuralgia.
Type:
Grant
Filed:
August 13, 1998
Date of Patent:
June 27, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Jonathan David Moseley, Christopher John Swain
Abstract: The present invention relates to certain spiro-piperdine derivatives which are tachykinnin antagonists and are useful, for example, in the treatment or prevention of pain, inflammation, migraine, emesis and postherpetic neuralgia.
Type:
Grant
Filed:
December 16, 1998
Date of Patent:
June 6, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Raymond Baker, Neil Roy Curtis, Jason Matthew Elliott, Timothy Harrison, Gregory John Hollingworth, Philip Stephen Jackson, Janusz Jozef Kulagowski, Eileen Mary Seward, Christopher John Swain, Brian John Williams
Abstract: The present invention relates to compounds of formula (I), wherein R is 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, which groups are optionally substituted by hydroxy, C.sub.1-4 alkoxy or NR.sup.a R.sup.b, where R.sup.a and R.sup.b each independently repesent hydrogen or C.sub.1-4 alkyl; or R is C.sub.1-4 alkyl substituted by Ar, and optionally further substituted by one or both of R.sup.4 and R.sup.5 ; R.sup.1, R.sup.2 and R.sup.3 represent a variety of substituents; R.sup.9 and R.sup.10 are each hydrogen, halogen, C.sub.1-6 alkyl, CH.sub.2 OR.sup.c, oxo, CO.sub.2 R.sup.a or CONR.sup.a R.sup.b where R.sup.c represents hydrogen, C.sub.1-6 alkyl or phenyl; X is --CH.sub.2, or --CH.sub.2 CH.sub.2 --; Y is --CH--, --CH.sub.2 --, --CH.sub.2 CH-- or --CH.sub.2 CH.sub.2 --, with the proviso that the sum total of carbon atoms in X+Y is 2 or 3; and when Y is --CH-- or --CH.sub.
Type:
Grant
Filed:
December 16, 1998
Date of Patent:
June 6, 2000
Assignee:
Merck Sharp & Dohme, Ltd.
Inventors:
Neil Roy Curtis, Ian Thomas Huscroft, Janusz Jozef Kulagowski, Christopher John Swain
Abstract: A class of substituted 7,8-ring fused 1,2,4-triazolo[4,3-b]pyridazine derivatives as shown in Formula I, possessing an optionally substituted cycloalkyl, phenyl or heteroaryl substituent at the 3-position and a substituted alkoxy moiety at the 6-position, are selective ligands for GABA.sub.A receptors, in particular having high affinity for the .alpha.2 and/or .alpha.3 subunit thereof, and are accordingly of benefit in the treatment and/or prevention of pain.
Type:
Grant
Filed:
December 10, 1998
Date of Patent:
May 16, 2000
Assignee:
Merck Sharp & Dohme Ltd.
Inventors:
Jose Luis Castro Pineiro, Raymond George Hill