Patents by Inventor Graham Andrew Showell

Graham Andrew Showell 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).

  • Publication number: 20110124626
    Abstract: A compound having the formula (1) wherein: R1 is a group selected from C3-8 cycloalkyl, C1-6 alkyl, C1-6 alkylene-C3-8 cycloalkyl, each of which groups may optionally be substituted with C1-6 alkyl, halogen, haloC1-6 alkyl or OR15, or R1 is heterocyclyl, optionally substituted with C1-6 alkyl, haloC1-6 alkyl or OR15; n is 0, 1, 2, 3 or 4, the alkylene group —(CH2)m— formed thereby being optionally substituted with a group selected from C1-4 alkyl, C3-8 cycloalkyl and arylsulfonyl; A is a group selected from —N(R2)CO—, —CON(R2)-, —OC(O)—, —C(O)O—, —CO—, —C(R2)(OR3)-, —C(?N—O—R3)-, —C(?CR2R3)-, —C3-8 cycloalkylene-, —C(R2)(haloC1-6alkyl)-, C1-4 alkylene and —C(OR3)(haloC1-6alkyl)-; R2 and R3 are each independently selected from H, C1-6 alkyl, and C3-8 cycloalkyl, or, when A is —N(R2)CO— and X is absent, R2 may form, together with the adjacent nitrogen atom and Z, an N-containing heterocyclyl group, which may optionally be substituted; X is absent or is C14 alkylene or C24 alkenylene, each of which may optionall
    Type: Application
    Filed: July 17, 2009
    Publication date: May 26, 2011
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Parminder Kaur Pooni, Kevin John Merchant, Catrina Morvern Kerr, Stuart Richard Crosby, Tomohiro Okawa, Mitsuru Sasaki, Mika Gotou, Graham Andrew Showell, Martin Richard Teall
  • Publication number: 20090291915
    Abstract: A compound of any of formulae (I) to (III) wherein at least one of Y and Z includes a Si atom, is of utility in therapy.
    Type: Application
    Filed: December 16, 2001
    Publication date: November 26, 2009
    Inventors: Graham Andrew Showell, David John Miller
  • Publication number: 20090209522
    Abstract: A compound of formula (I): wherein either B is absent and A and Z are the same or different and are each hydrogen, halogen, alkyl, hydroxy, alkoxy, —CN, —C(Rc)2OH, —N(Rd)C(?X)Rc, —C(?X)N(Rc)(Rd), —S(O)m—Rc, —N(Rc)(Rd)S(O)2, —S(O)2N(Rc)(Rd), —N(Rc)2, aryl optionally substituted with Ra or —O-aryl optionally substituted with Ra; or B is present and is —(CH2)n—, —C(Rb)2— or —O—, or B taken together with A or Z can be —C?C(Rb)—, —C(Rb)?C—, —CH2—CH(Rb)— or —CH(Rb)—CH2—; D is —O— or —S(O)m?—; E is a bond or is —(CH2)n—, —N(Rd)—, —(CH2)nN(Rd)— or —N(Rd)(CH2)n—; F is —C(?X)—; G is —(CH2)n—, —N(Rd)—, —(CH2)nN(Rd)— or —N(Rd)(CH2)n; J is a bond, —O—, —N(RC)C(?X)—, —C(?X)N(Rc)—, —S(O)m?—, —N(Rc)S(O)m—, —S(O)nN(Rc)—, —N(Rc)— or —N(Rg)(Rh); K is a bond, alkylene, cycloalkylene, cycloalkenylene, arylene, heterocycloalkylene, heterocycloalkylene or heteroarylene; and L is hydrogen or a terminal group; has therapeutic utility.
    Type: Application
    Filed: June 27, 2006
    Publication date: August 20, 2009
    Inventors: Graham Andrew Showell, David John Miller, Angela Glen, Maria Angeles Cubillo De Dios, Kevin Merchant, Ajay Kumar Mandal
  • Publication number: 20080261918
    Abstract: A compound of any of formulas (I) to (V): wherein at least one of Y and Z includes a Si atom, is of utility in therapy.
    Type: Application
    Filed: December 16, 2003
    Publication date: October 23, 2008
    Inventors: Graham Andrew Showell, Louise Marie Walsh, Ajay Kumar Mandal, David John Miller
  • Patent number: 7407649
    Abstract: A compound of formula (I) or formula (II) wherein the variables are as defined in the claims
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: August 5, 2008
    Assignee: Paradigm Therapeutics Ltd
    Inventors: David John Miller, Parminder Kaur Ruprah, Graham Andrew Showell, Louise Marie Walsh
  • Patent number: 6852744
    Abstract: Novel pyrrolidine derivatives, being useful as chymase inhibitor or intermediate for synthesis of the active compounds, which has the formula (I): wherein R1 is cycloalkyl, substituted or unsubstituted phenyl or naphthyl, indanyl, thienyl, furyl, substituted or unsubstituted indolyl, benzofuryl, substituted or unsubstituted benzothienyl, etc.; R2 is H, alkyl, phenyl-lower alkyl, cycloalkyl or cycloalkyl-lower alkyl; R3 is (i) substituted or unsubstituted monocyclic heterocyclic group, (ii) substituted or unsubstituted benzene- or pyridine-fused heterocyclic group, or (iii) a group (a): R4 and R5 are independently H or OH, but R4 and R5 are not simultaneously H, or both form oxo; n is 0, 1, 2 or 3; or a salt thereof.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: February 8, 2005
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Takashi Deguchi, Ryotaro Shiratake, Fuminori Sato, Buichi Fujitani, Yayoi Honda, Akihiko Kiyoshi, Mitsue Notake, Graham Andrew Showell, Robert George Boyle, Sukhbinder Singh Klair
  • Publication number: 20040102384
    Abstract: Novel pyrrolidine derivatives, being useful as chymase inhibitor or intermediate for synthesis of the active compounds, which has the formula (I): wherein R1 is cycloalkyl, substituted or unsubstituted phenyl or naphthyl, indanyl, thienyl, furyl, substituted or unsubstituted indolyl, benzofuryl, substituted or unsubstituted benzothienyl, etc.; R2 is H, alkyl, phenyl-lower alkyl, cycloalkyl or cycloalkyl-lower alkyl; R3 is (i) substituted or unsubstituted monocyclic heterocyclic group, (ii) substituted or unsubstituted, benzene- or pyridine-fused heterocyclic group, or (iii) a group (a): R4 and R5 are independently H or OH, but R4 and R5 are not simultaneously H, or both form oxo; n is 0, 1, 2 or 3; or a salt thereof.
    Type: Application
    Filed: February 28, 2003
    Publication date: May 27, 2004
    Inventors: Takashi Deguchi, Ryotaro Shiratake, Fuminori Sato, Buichi Fujitani, Yayoi Honda, Akihiko Kiyoshi, Mitsue Notake, Graham Andrew Showell, Robert George Boyle, Sukhbinder Singh Klair
  • Patent number: 6211219
    Abstract: A class of substituted aminocyclohexane derivatives are selective agonists of 5-HT1-like receptors, being potent agonists of the human 5-HT1D&agr; receptor subtype while possessing at least a 10-fold selective affinity for the 5-HT1D&agr; receptor subtype relative to the 5-HT1D&bgr; 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-HT1D receptors is indicated, while eliciting fewer side-effects, notably adverse cardiovascular events, than those associated with non-subtype-selective 5-HT1D receptor agonists.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: April 3, 2001
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Angus Murray MacLeod, Graham Andrew Showell, Leslie Joseph Street
  • Patent number: 6140347
    Abstract: A class of compounds of formula (I) wherein Z, E, Q, T, U, V, W, M, R.sup.1, R.sup.7 and R.sup.8 are as defined herein; 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 14, 1998
    Date of Patent: October 31, 2000
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Jose Luis Castro Pineiro, Andrew Madin, Joseph George Neduvelil, Graham Andrew Showell, Leslie Joseph Street, Monique Bodil Van Niel
  • Patent number: 6127388
    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
  • Patent number: 6054469
    Abstract: Compounds having formula I, or salts or prodrugs thereof: ##STR1## are selective agonists of the 5-HT.sub.1D.alpha. receptor and are useful in the treatment of migraine and associated conditions.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: April 25, 2000
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Sylvie Bourrain, Angus Murray MacLeod, Graham Andrew Showell
  • Patent number: 6048878
    Abstract: A compound of formula (I), or a salt or prodrug thereof, is described, wherein G is attached at position 3 or 4 of the piperidine ring and represents halogen or C.sub.1-6 alkoxy; R1 represents C.sub.3-6 alkenyl, C.sub.3-6 alkynyl, aryl(C.sub.1-6)alkyl or heteroaryl (C.sub.1-6)alkyl, any of which groups may be optionally substituted; processes for its preparation and its use in therapy, particularly in the treatment of migraine.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: April 11, 2000
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Jose Luis Castro Pineiro, Ian James Collins, Angus Murray MacLeod, Christopher Richard Moyes, Michael Rowley, Graham Andrew Showell
  • Patent number: 5998416
    Abstract: A class of N-substituted piperazine, piperidine, and tetrahydropyridine derivatives, further subltitutedat the 4-position by an optionally substituted alkenyl, alkynyl, 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.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: December 7, 1999
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Sylvie Bourrain, Angus Murray MacLeod, Graham Andrew Showell, Leslie Joseph Street
  • Patent number: 5994374
    Abstract: A class of 1-[3-(1H-indol-3-yl)propyl]-4-benzyl-1,2,5,6-tetrahydropyridine derivatives, substituted at the 5-position of the indole nucleus by a 1,2,4-triazol-4-yl moiety, and on the methylene linkage of the benzyl moiety by an alkyl, alkoxy, or alkoxy-alkoxy substituent, are selective agonists of 5-HT.sub.1 -like receptors, being potent agonists of the human 5-HT.sub.1D.alpha. receptor subtype while possessing at least a 10-fold selective affinity for the 5HT.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.alpha. receptors is indicated, and are expected to have fewer undesirable cardiovascular and other side effects.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: November 30, 1999
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Sylvie Bourrain, Angus Murray MacLeod, Joseph George Neduvelil, Graham Andrew Showell
  • Patent number: 5854268
    Abstract: A class of substituted azetidine, pyrrolidine and piperidine derivatives 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: January 22, 1997
    Date of Patent: December 29, 1998
    Assignee: Merck Sharp & Dohme, Ltd.
    Inventors: Raymond Baker, Sylvie Bourrain, Jose Luis Castro Pineiro, Mark Stuart Chambers, Alexander Richard Guiblin, Sarah Christine Hobbs, Richard Alexander Jelley, Andrew Madin, Victor Giulio Matassa, Austin John Reeve, Michael Geoffrey Russell, Graham Andrew Showell, Francine Sternfeld, Leslie Joseph Street, Monique Bodil Van Niel
  • Patent number: 5807857
    Abstract: Compounds of formula (I), or a salt or prodrug thereof, wherein Z represents an optionally substituted five-membered heteroaromatic ring selected from furan, thiophene, pyrrole, oxazole, thiazole, isoxazole, isothiazole, imidazole, pyrazole, oxadiazole, thiadiazole, triazole and tetrazole; E represents a chemical bond or a straight or branched alkylene chain containing from 1 to 4 carbon atoms; Q represents a straight or branched alkylene chain containing from 1 to 6 carbon atoms, optionally substituted in any position by a hydroxy group; T represents nitrogen or CH; U represents nitrogen or C--R.sup.2 ; V represents oxygen, sulphur or N--R.sup.3 ; --F--G-- represents --CH2--N--, --CH2--CH-- or --CH.dbd.C--; R.sup.1 represents C.sub.3-6 alkenyl, C.sub.3-6 alkynyl, aryl(C.sub.1-6)alkyl or heteroaryl(C.sub.1-6)alkyl, any of which groups may be optionally substituted; and R.sup.2 and R.sup.3 independently represent hydrogen or C.sub.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: September 15, 1998
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Jose Luis Castro Pineiro, Mark Stuart Chambers, Sarah Christine Hobbs, Austin John Reeve, Graham Andrew Showell, Leslie Joseph Street, Victor Giulio Matassa
  • Patent number: 5696110
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: December 9, 1997
    Assignee: Merck, Sharp & Dohme, Ltd.
    Inventors: Sylvie Bourrain, Stephen Robert Fletcher, Victor Giulio Matassa, Graham Andrew Showell
  • Patent number: 5684006
    Abstract: A class of substituted isoxazole and pyrazole derivatives of formula (I), or a salt thereof of or a prodrug thereof, wherein the broken circle represents two non-adjacent double bonds whereby the five-membered ring containing X and Y is aromatic; one of X and Y represents nitrogen, and the other of X and Y represents oxygen or N--R.sup.5 ; R.sup.1 represents hydrogen, C.sub.1-6 alkyl or trifluoromethyl; R.sup.2 and R.sup.3 independently represent hydrogen, hydrocarbon, a heterocyclic group, halogen, cyano, trifluoromethyl, nitro, --OR.sup.a, --SR.sup.a, --SOR.sup.a, --SO.sub.2 R.sup.a, --SO.sub.2 NR.sup.a R.sup.b, --NR.sup.a R.sup.a, --NR.sup.a CO.sub.2 R.sup.b, --COR.sup.a, --CO.sub.2 R.sup.a or --CONR.sup.a R.sup.b, R.sup.4 represents hydrocarbon or a heterocyclic group; R.sup.5 represents hydrogen or C.sub.1-6 alkyl; and R.sup.a and R.sup.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: November 4, 1997
    Assignee: Merck, Sharp & Dohme, Ltd.
    Inventors: Sylvie Bourrain, Joseph George Neduvelil, Paul David Leeson, Graham Andrew Showell