Patents by Inventor Alan John Collis

Alan John Collis 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).

  • Patent number: 8828974
    Abstract: The present invention relates to a series of substituted 3-aminopropane phosphinic acid derivatives of formula I: wherein R, R1, P1, P2 and P3 are as defined herein. The compounds of this invention are useful in treating a variety of diseases including but not limited to depression, anxiety, certain psychiatric symptoms, cognitive impairment and schizophrenia.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: September 9, 2014
    Assignee: Aventis Pharmaceuticals Inc.
    Inventors: Yong Mi Choi-Sledeski, Julian Levell, Gregory Bernard Poli, Mark Czekaj, Alan John Collis, Roy Vaz
  • Publication number: 20120208784
    Abstract: The present invention relates to a series of substituted 3-aminopropane phosphinic acid derivatives of formula I: wherein R, R1, P1, P2 and P3 are as defined herein. The compounds of this invention are useful in treating a variety of diseases including but not limited to depression, anxiety, certain psychiatric symptoms, cognitive impairment and schizophrenia.
    Type: Application
    Filed: April 24, 2012
    Publication date: August 16, 2012
    Applicant: AVENTIS PHARMACEUTICALS INC.
    Inventors: Yong Mi CHOI-SLEDESKI, Julian LEVELL, Gregory Bernard POLI, Mark CZEKAJ, Alan John COLLIS, Roy VAZ
  • Patent number: 8183231
    Abstract: The present invention relates to a series of substituted 3-aminopropane phosphinic acid derivatives of formula I: wherein R, R1, P1, P2 and P3 are as defined herein. The compounds of this invention are useful in treating a variety of diseases including but not limited to depression, anxiety, certain psychiatric symptoms, cognitive impairment and schizophrenia.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: May 22, 2012
    Assignee: Aventis Pharmaceuticals Inc.
    Inventors: Yong Mi Choi-Sledeski, Julian Levell, Gregory Bernard Poli, Mark Czekaj, Alan John Collis, Roy Vaz
  • Patent number: 7687540
    Abstract: The present invention relates to certain esters of substituted 3-aminopropane phosphinic acid derivatives of formula I: wherein R, R1 and R2 are as defined herein. The compounds of this invention are useful in treating a variety of diseases including but not limited to depression, anxiety, certain psychiatric symptoms, cognitive impairment and schizophrenia.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: March 30, 2010
    Assignee: Aventis Pharmaceuticals Inc.
    Inventors: Alan John Collis, Gregory Bernard Poli, Yong Mi Choi-Sledeski
  • Patent number: 6750214
    Abstract: The invention provides compounds of formula (I), wherein R1 represents C1-4 alkoxy optionally substituted by one or more fluorine atoms; R2 represents H or C1-6 alkoxy optionally substituted by one or more fluorine atoms; R3 represents one or more groups independently selected from H, halogen, C1-4 alkoxy and CF3; in addition, R2 and one R3 group may together represent —OCH2—, the methylene group being attached to the ortho-position of the pendant phenyl ring; R4 represents a 4-, 5- or 6-membered heterocyclic ring containing 1 or 2 heteroatoms selected from N, O and S, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring containing 1 or 2 heteroatoms selected from N, O and S, the ring system as a whole being optionally substituted; X represents CH or N; and L is absent or represents a cyclic group or an open chain group; and the pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: June 15, 2004
    Inventors: Alan John Collis, David Nathan Abraham Fox, Julie Newman
  • Publication number: 20040034032
    Abstract: Compounds of formula I, 1
    Type: Application
    Filed: August 13, 2003
    Publication date: February 19, 2004
    Applicant: Pfizer Inc
    Inventors: Alan John Collis, David Nathan Fox
  • Publication number: 20030220332
    Abstract: The invention provides compounds of formula (I), 1
    Type: Application
    Filed: June 4, 2003
    Publication date: November 27, 2003
    Applicant: Pfizer Inc.
    Inventors: Alan John Collis, David Nathan Abraham Fox, Julie Newman
  • Patent number: 6649620
    Abstract: Compounds of formula I, wherein R1 represents C1-4 alkoxy optionally substituted by one or more fluorine atoms; R2 represents an aryl group or a heteroaryl group, optionally substituted by C1-4 alkyl or SO2NH2; R3 represents a 4-, 5-, 6-, or 7-membered heterocyclic ring containing at least one heteroatom selected from N, O and S, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring containing at least one heteroatom selected from N, O and S, the ring system as a whole being optionally substituted; X represents CH or N; and L is absent, or represents a cyclic group of formula Ia,  or represents a chain of formula Ib,  and pharmaceutically acceptable salts thereof, are useful in the treatment of a variety of disorders including benign prostatic hyperplasia.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: November 18, 2003
    Assignee: Pfizer Inc.
    Inventors: Alan John Collis, David Nathan Fox
  • Patent number: 6642242
    Abstract: The invention provides compounds of formula (I), wherein R1 represents C1-4 alkoxy optionally substituted by one or more fluorine atoms; R2 represents H or C1-6 alkoxy optionally substituted by one or more fluorine atoms; R3 represents one or more groups independently selected from H, halogen, C1-4 alkoxy and CF3; in addition, R2 and one R3 group may together represent —OCH2—, the methylene group being attached to the ortho-position of the pendant phenyl ring; R4 represents a 4-, 5- or 6-membered heterocyclic ring containing 1 or 2 heteroatoms selected from N, O and S, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring containing 1 or 2 heteroatoms selected from N, O and S, the ring system as a whole being optionally substituted; X represents CH or N; and L is absent or represents a cyclic group or an open chain group; and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: November 4, 2003
    Assignee: Pfizer Inc.
    Inventors: Alan John Collis, David Nathan Abraham Fox, Julie Newman
  • Publication number: 20030045525
    Abstract: Compounds of formula I, 1
    Type: Application
    Filed: September 23, 2002
    Publication date: March 6, 2003
    Inventors: Alan John Collis, David Nathan Fox
  • Patent number: 6479519
    Abstract: The invention is directed to physiologically active compounds of formula (I): wherein: R1 is hydrogen, halogen, hydroxy, lower alkyl or lower alkoxy; X1, X2 and X6 independently represent N or CR10; and one of X3, X4 and X5 represents CR11 and the others independently represents N or CR10; where R10 is hydrogen, amino, halogen, hydroxy, lower alkyl, lower alkoxy, lower alkylthio, lower alkylsulphinyl, lower alkylsulphonyl, nitro or trifluoromethyl; and R11 represents a group —L1—Ar1—L2—Y; and the corresponding N-oxides, and their prodrugs; and pharmaceutically acceptable salts and solvates of such compounds and their N-oxides and prodrugs. Such compounds have valuable pharmaceutical properties, in particular the ability to regulate the interaction of VCAM-1 and fibronectin with the integrin VLA-4 (&agr;4&bgr;1).
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: November 12, 2002
    Assignee: Aventis Pharma Limited
    Inventors: Peter Charles Astles, David Edward Clark, Alan John Collis, Paul Joseph Cox, Paul Robert Eastwood, Neil Victor Harris, Justine Yeun Quai Lai, Andrew David Morley, Barry Porter
  • Patent number: 6417194
    Abstract: Compounds of formula I, wherein R1 represents C1-4 alkoxy optionally substituted by one or more fluorine atoms; R2 and R3 independently represent H or C1-6 alkoxy (which is optionally substituted); R4 represents a 4-, 5-, 6- or 7-membered heterocyclic ring, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic, the ring system as a whole being optionally substituted; X represents CH or N; and L is absent, or represents a cyclic group of formula Ia, or represents a chain of formula Ib, and pharmaceutically acceptable salts thereof; are useful in therapy, in particular in the treatment of benign prostatic hyperplasia.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: July 9, 2002
    Assignee: Pfizer, Inc.
    Inventors: David Nathan Abraham Fox, Alan John Collis, Simon John Mantell
  • Publication number: 20020049322
    Abstract: The invention provides compounds of formula (I), 1
    Type: Application
    Filed: March 19, 2001
    Publication date: April 25, 2002
    Inventors: Alan John Collis, David Nathan Abraham Fox, Julie Newman
  • Patent number: 6103738
    Abstract: The invention provides compounds of formula (I), ##STR1## wherein R.sup.1 represents C.sub.1-4 alkoxy optionally substituted by one or more fluorine atoms; R.sup.2 represents H or C.sub.1-6 alkoxy optionally substituted by one or more fluorine atoms; R.sup.3 represents one or more groups independently selected from H, halogen, C.sub.1-4 alkoxy and CF.sub.3 ; in addition, R.sup.2 and one R.sup.3 group may together represent --OCH.sub.2 --, the methylene group being attached to the ortho-position of the pendant phenyl ring; R.sup.4 represents a 4-, 5- or 6-membered heterocyclic ring containing 1 or 2 heteroatoms selected from N, O and S, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring containing 1 or 2 heteroatoms selected from N, O and S, the ring system as a whole being optionally substituted; X represents CH or N; and L is absent or represents a cyclic group or an open chain group; and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: August 15, 2000
    Assignee: Pfizer Inc.
    Inventors: Alan John Collis, David Nathan Abraham Fox, Julie Newman
  • Patent number: 6048864
    Abstract: Compounds of formula I, ##STR1## wherein R.sup.1 represents C.sub.1-4 alkoxy optionally substituted by one or more fluorine atoms;R.sup.2 and R.sup.3 independently represent H or C.sub.1-6 alkoxy (which is optionally substituted);R.sup.4 represents a 4-, 5-, 6- or 7-membered heterocyclic ring, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic, the ring system as a whole being optionally substituted;X represents CH or N; andL is absent,or represents a cyclic group of formula Ia, ##STR2## or represents a chain of formula Ib, ##STR3## and pharmaceutically acceptable salts thereof, are useful in therapy, in particular in the treatment of benign prostatic hyperplasia.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: April 11, 2000
    Assignee: Pfizer Inc
    Inventors: David Nathan Abraham Fox, Alan John Collis, Simon John Mantell