Patents by Inventor Angus M. MaCleod
Angus M. MaCleod has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5620989Abstract: 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, and R.sup.Type: GrantFiled: April 13, 1995Date of Patent: April 15, 1997Assignee: Merck Sharp & Dohme LimitedInventors: Timothy Harrison, Angus M. MacLeod, Graeme I. Stevenson, Brian J. Williams
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Patent number: 5612337Abstract: The present invention relates to compounds of formula (I), wherein R.sup.1 is hydrogen, halogen, C.sub.1-6 C alkyl, C.sub.1-6 alkoxy, CF.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 substituted by C.sub.1-4 alkoxy, where R.sup.a and R.sup.b are hydrogen or C.sub.1-4 alkyl; R.sup.2 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.3 is hydrogen, halogen or CF.sub.3 ; R.sup.4 is selected from the definitions of R.sup.1 ; R.sup.5 is selected from the definitions of R.sup.2 ; R.sup.6 is a 5-membered or 6-membered heterocyclic ring containing 2 or 3 nitrogen atoms optionally substituted by .dbd.O, .dbd.S or a C.sub.1-4 alkyl group, and optionally substituted by an aminoalkyl group; R.sup.9a and R.sup.9b are hydrogen or C.sub.1-4 alkyl, or R.sup.9a and R.sup.9b are joined to form a C.sub.5-7 ring; X is C.sub.Type: GrantFiled: June 13, 1996Date of Patent: March 18, 1997Assignee: Merck Sharp & Dohme LimitedInventors: Raymond Baker, Timothy Harrison, Angus M. MacLeod, Andrew P. Owens, Eileen M. Seward, Christopher J. Swain, Martin R. Teall
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Patent number: 5612336Abstract: Compounds of formula (I), and salts and prodrugs thereof, wherein Q.sup.1 is phenyl substituted by one or more halo; optionally substituted naphthyl, indolyl, benzothiophenyl, benzofuranyl, benzyl or fluorenyl; the dotted line represents an optional covalent bond; one of X and Y is H and the other is hydroxy or C.sub.1-6 alkoxy, or X and Y together form a group .dbd.O or .dbd.NOR.sup.5 where R.sup.5 is H or C.sub.1-6 alkyl; R.sup.1 is H or C.sub.1-6 alkyl. R.sup.2 is CO--W--R.sup.6 where W represents a bond or a hydrocarbon chain of 1-6 carbon atoms and R.sup.6 is an azacyclic or azabicyclic group; R.sup.3 is H, C.sub.1-6 alkyl or C.sub.2-6 alkenyl; and R.sup.4 is phenyl optionally substituted by 1-3 of C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, halo, cyano, nitro, trifluoromethyl, trimethylsilyl, OR.sup.a, SR.sup.a, SOR.sup.a, NR.sup.a R.sup.b, NR.sup.a COR.sup.b, NR.sup.a CO.sub.2 R.sup.b, CO.sub.2 R.sup.a or CONR.sup.a R.sup.b, where R.sup.a and R.sup.b are H, C.sub.Type: GrantFiled: January 13, 1995Date of Patent: March 18, 1997Assignee: Merck, Sharp & Dohme Ltd.Inventors: Richard J. Lewis, Angus M. MacLeod, Kevin J. Merchant
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Patent number: 5612362Abstract: Compounds of formula (I) and salts and prodrugs wherein Q.sup.1 is a specified aryl group, the dotted line is an optional double bond, Z is O or NR.sup.3, R.sup.1 and R.sup.3 are H or specified optionally substituted alkyl or other substituents and R.sup.2 is an optionally substituted phenyl or group are tachykinin receptor antagonists useful in medicine.Type: GrantFiled: April 18, 1995Date of Patent: March 18, 1997Assignee: Merck Sharp & Dohme Ltd.Inventor: Angus M. MacLeod
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Patent number: 5580877Abstract: A class of 3,5-dihydro-1H-pyrazolo[3,4-c]quinoline-1,4(2H)-dione derivatives, substituted in the 2-position by an optionally substituted phenyl moiety, are selective non-competitive antagonists of NMDA receptors and/or are antagonists of AMPA receptors, and are therefore of utility in the treatment and/or prevention of conditions, such as neurodegenerative disorders, convulsions or schizophrenia, which require the administration of an NMDA and/or AMPA antagonist.Type: GrantFiled: April 24, 1995Date of Patent: December 3, 1996Assignee: Merck Sharp & Dohme Ltd.Inventor: Angus M. MacLeod
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Patent number: 5554627Abstract: Compounds of formula (I), wherein Q.sup.1 represents an aryl group; the dotted line represents an optional covalent bond; one of X and Y represents H and the other represents hydroxy or C.sub.1-6 alkoxy, or X and Y together form a group .dbd.O or .dbd.NOR.sup.5 where R.sup.5 is H or C.sub.1-6 alkyl; Z represents O, S or NR.sup.2, where R.sup.2 is H or C.sub.1-6 alkyl; W represents a bond or a saturated or unsaturated hydrocarbon chain of 1, 2, 3, 4, 5 or 6 carbon atoms; R.sup.1 represents H or C.sub.1-6 alkyl. R.sup.3 represents H, C.sub.1-6 alkyl or C.sub.2-6 alkenyl; R.sup.4 represents an optionally substituted phenyl group; and R.sup.6 represents a specified amino group or an optionally substituted aromatic or non-aromatic azacyclic or azabicyclic group; and salts and prodrugs are tachykinin receptor antagonists.Type: GrantFiled: April 27, 1995Date of Patent: September 10, 1996Assignee: Merck, Sharp & Dohme Ltd.Inventors: Richard T. Lewis, Angus M. MacLeod, Kevin J. Merchant
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Patent number: 5519163Abstract: Novel .alpha.-hydroxyphosphonate compounds which inhibit mammalian phosphoinositide-specific phospholipase-C. The compounds are potent anti-inflammatory and analgesic agents and may be useful for the treatment of cancer.Type: GrantFiled: October 15, 1993Date of Patent: May 21, 1996Assignee: Merck & Co., Inc.Inventors: Jackson B. Gibbs, Kenneth S. Koblan, Angus M. MacLeod, Kevin J. Merchant
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Patent number: 5514718Abstract: Compounds of formula (I), and salts and prodrugs thereof ##STR1## wherein Q.sup.1 is halo substituted phenyl; naphthyl; indolyl; benzthiophenyl; benzofuranyl; benzyl; or fluorenyl;. . is an optional covalent bond;one of X and Y is H and the other is hydroxy or C.sub.1-6 alkoxy, or X and Y are together .dbd.O or .dbd.NOR.sup.5 ;R.sup.1 and R.sup.2 are H; C.sub.1-6 alkyl optionally substituted by hydroxy, cyano, COR.sup.c, CO.sub.2 R.sup.c, CONR.sup.c R.sup.d, or NR.sup.c R.sup.d (where R.sup.c and R.sup.d are H, C.sub.1-6 alkyl or phenyl(C.sub.0-4 alkyl) optionally substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halo and trifluoromethyl); phenyl(C.sub.1-4 alkyl) (optionally substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halo or trifluoromethyl); COR.sup.c ; CO.sub.2 R.sup.c ; CONR.sup.c R.sup.d ; COC.sub.1-6 alkylNR.sup.c R.sup.d ; CONR.sup.c COOR.sup.d ; or SO.sub.2 R.sup.c ;R.sup.3 is H, C.sub.1-6 alkyl or C.sub.2-6 alkenyl; andR.sup.4 is phenyl optionally substituted by C.sub.1-6 alkyl, C.sub.Type: GrantFiled: April 15, 1994Date of Patent: May 7, 1996Assignee: Merck, Sharp & Dohme LimitedInventors: Richard T. Lewis, Kevin J. Merchant, Angus M. MacLeod
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Patent number: 5472978Abstract: Compounds of formula (I), and salts and prodrugs thereof, wherein Q represents optionally substituted phenyl, naphthyl, indolyl, benzothiophenyl, benzofuranyl, benzyl or indazolyl; Z represents O, S or NR.sup.8 ; X and Y are H or are together .dbd.O; R.sup.1 and R.sup.2 are H; optionally substituted C.sub.1-6 alkyl; optionally substituted phenyl(C.sub.1-4 alkyl); COR.sup.c ; CO.sub.2 R.sup.c ; CONR.sup.c R.sup.d ; CONR.sup.c COOR.sup.d ; or SO.sub.2 R.sup.c ; R.sup.3 is H or C.sub.1-6 alkyl, R.sup.4 is H , C.sub.1-6 alkyl or optionally substituted phenyl; and R.sup.5 represents optionally substituted phenyl; are tachykinin antagonists. They and compositions thereof are useful in therapy.Type: GrantFiled: December 10, 1993Date of Patent: December 5, 1995Assignee: Merck Sharp & Dohme Ltd.Inventors: Raymond Baker, Angus M. MacLeod, Kevin J. Merchant, Christopher J. Swain
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Patent number: 5405853Abstract: A class of novel thiadiazoles, substituted on one of the ring carbon atoms with a non-aromatic azacyclic or azabicyclic ring system, and substituted on the other ring carbon atom with a substituent of low lipophilicity, or a hydrocarbon substituent; are potent muscarinic agonists, and have good CNS penetrability. The compounds are therefore useful in the treatment of neurological and mental illnesses, and are also of benefit in the treatment of severe painful conditions.Type: GrantFiled: December 13, 1993Date of Patent: April 11, 1995Assignee: Merck Sharpe & Dohme Ltd.Inventors: Raymond Baker, Angus M. MacLeod, John Saunders, Kevin Merchant
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Patent number: 5334606Abstract: Compounds of formula (I): ##STR1## wherein Q.sup.1 represents a phenyl group substituted by one or more halo; naphthyl; indolyl; benzthiophenyl; benzofuranyl; benzyl; or fluorenyl;R.sup.1 is H, C.sub.1-6 alkyl or C.sub.2-6 alkenyl;R.sup.2 is phenyl(C.sub.1-4 alkyl) optionally substituted in the phenyl ring by one or more groups selected from C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, halo, cyano, nitro, trifluoromethyl, SR.sup.b, SOR.sup.b, SO.sub.2 R.sup.b, OR.sup.b, NR.sup.b R.sup.c, NR.sup.b COR.sup.c, NR.sup.b COOR.sup.c, COOR.sup.b or CONR.sup.b R.sup.c, where R.sup.b and R.sup.c independently represent H, C.sub.1-6 alkyl, phenyl or trifluoromethyl; andZ is O, S, NR.sup.8 or CR.sup.9 R.sup.10, where R.sup.8 represents H C.sub.1-6 alkyl, phenyl, phenyl(C.sub.1-4 alkyl), COR.sup.11, COOR.sup.11, CONR.sup.9 R.sup.10 where R.sup.11 is phenyl, phenyl(C.sub.1-4 alkyl) or C.sub.1-6 alkyl, and R.sup.9 and R.sup.10 are each H, C.sub.1-6 alkyl, phenyl or phenyl(C.sub.Type: GrantFiled: November 30, 1992Date of Patent: August 2, 1994Assignee: Merck Sharpe & Dohme Ltd.Inventor: Angus M. MacLeod
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Patent number: 5328927Abstract: Compounds of formula (I), and salts and prodrugs thereof ##STR1## wherein Q.sup.1 is halo substituted phenyl; naphthyl; indolyl; benzthiophenyl; benzofuranyl; benzyl; or fluorenyl;. . is an optional covalent bond;one of X and Y is H and the other is hydroxy or C.sub.1-6 alkoxy, or X and Y are together .dbd.0 or .dbd.NOR.sup.5 ;R.sup.1 and R.sup.2 are H; C.sub.1-6 alkyl optionally substituted by hydroxy, cyano, COR.sup.c, CO.sub.2 R.sup.c, CONR.sup.c R.sup.d, or NR.sup.c R.sup.d (where R.sup.c and R.sup.d are H, C.sub.1-6 alkyl or phenyl(C.sub.0-4 alkyl) optionally substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halo and trifluoromethyl); phenyl(C.sub.1-4 alkyl) (optionally substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halo or trifluoromethyl); COR.sup.c ; CO.sub.2 R.sup.c ; CONR.sup.c R.sup.d ; COC.sub.1-6 alkylNR.sup.c R.sup.d ; CONR.sup.c COOR.sup.d ; or SO.sub.2 R.sup.c ;R.sup.3 is H, C.sub.1-6 alkyl or C.sub.2-6 alkenyl; andR.sup.4 is phenyl optionally substituted by C.sub.1-6 alkyl, C.sub.Type: GrantFiled: February 24, 1993Date of Patent: July 12, 1994Assignee: Merck Sharpe & Dohme, Ltd.Inventors: Richard T. Lewis, Kevin J. Merchant, Angus M. MacLeod
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Patent number: 5242927Abstract: A class of novel oxadiazoles, substituted on one of the ring carbon atoms with a non-aromatic azacyclic or azabicyclic ring and on the other ring carbon atom with a substituent which is convertible in vivo to an amino group, are potent muscarinic agonists, and exhibit improved CNS penetrability and duration of action compared with the corresponding amino compounds. The compounds are therefore useful in the treatment of neurological and mental illnesses.Type: GrantFiled: July 18, 1988Date of Patent: September 7, 1993Assignee: Merck Sharp & Dohme LimitedInventors: Raymond Baker, John Saunders, Angus M. MaCleod, Graham A. Showell