Patents by Inventor John W. F. Whitehead

John W. F. Whitehead 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: 11111246
    Abstract: The invention relates to Substituted-Quinoxaline-Type Bridged-Piperidine Compounds, compositions comprising an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: September 7, 2021
    Assignee: Purdue Pharma L.P.
    Inventors: Jiangchao Yao, John W. F. Whitehead, Naoki Tsuno, Kouki Fuchino
  • Publication number: 20200223847
    Abstract: The invention relates to Substituted-Quinoxaline-Type Bridged-Piperidine Compounds, compositions comprising an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound.
    Type: Application
    Filed: December 6, 2019
    Publication date: July 16, 2020
    Inventors: Jiangchao Yao, John W.F. Whitehead, Naoki Tsuno, Kouki Fuchino
  • Patent number: 10519156
    Abstract: Compounds of Formula (I): where R1, R2, R5, a, and b are disclosed herein, and pharmaceutically acceptable derivatives thereof, compositions thereof, and methods to treat or prevent a condition (such as pain) thereof. The disclosure also provides compounds of formula QB or O2 and their utility in manufacture processes in obtaining compounds of Formula (I).
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: December 31, 2019
    Assignee: Purdue Pharma L.P.
    Inventors: Jiangchao Yao, John W. F. Whitehead, Naoki Tsuno, Kouki Fuchino
  • Publication number: 20180370971
    Abstract: The invention relates to Substituted-Quinoxaline-Type Bridged-Piperidine Compounds, compositions comprising an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound.
    Type: Application
    Filed: September 4, 2018
    Publication date: December 27, 2018
    Inventors: Jiangchao Yao, John W.F. Whitehead, Naoki Tsuno, Kouki Fuchino
  • Publication number: 20180148449
    Abstract: The invention relates to Substituted-Quinoxaline-Type Bridged-Piperidine Compounds, compositions comprising an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound.
    Type: Application
    Filed: January 23, 2018
    Publication date: May 31, 2018
    Inventors: Jiangchao Yao, John W.F. Whitehead, Naoki Tsuno, Kouki Fuchino
  • Publication number: 20160009717
    Abstract: Compounds of Formula (I): where R1, R2, R5, a, and b are disclosed herein, and pharmaceutically acceptable derivatives thereof (a “Substituted-Quinoxaline-Type Bridged-Piperidine Compound”), compositions comprising an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 14, 2016
    Inventors: Kouki FUCHINO, Naoki TSUNO, John W.F. WHITEHEAD, Jiangchao YAO
  • Patent number: 9145408
    Abstract: Compounds of Formula (I): where R1, R2, R5, a, and b are disclosed herein, and pharmaceutically acceptable derivatives thereof (a “Substituted-Quinoxaline-Type Bridged-Piperidine Compound”), compositions comprising an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: September 29, 2015
    Assignees: Purdue Pharma L.P., Shionogi & Co., Ltd.
    Inventors: Naoki Tsuno, John W. F. Whitehead, Jiangchao Yao
  • Patent number: 9000174
    Abstract: The invention relates to piperidinyl compounds of Formula (I): or a pharmaceutically acceptable salt, prodrug, or solvate thereof, wherein R1-R3 and Z are defined as set forth in the specification. The invention is also directed to an assay useful for identifying such compounds as N-type calcium channel modulators or blockers. The invention is also directed to the compounds of Formula (I) and compounds identified by the above assay, and the use of such compounds to treat, prevent or ameliorate a disorder responsive to the blockade of calcium channels, and particularly N-type calcium channels. Compounds of the present invention are especially useful for treating pain.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: April 7, 2015
    Assignee: Purdue Pharma L.P.
    Inventors: Elfrida R. Benjamin, Zhengming Chen, Deyou Sha, Laykea Tafesse, Samuel F. Victory, John W. F. Whitehead
  • Publication number: 20130274265
    Abstract: Compounds of Formula (I): where R1, R2, R5, a, and b are disclosed herein, and pharmaceutically acceptable derivatives thereof (a “Substituted-Quinoxaline-Type Bridged-Piperidine Compound”), compositions comprising an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound.
    Type: Application
    Filed: June 11, 2013
    Publication date: October 17, 2013
    Inventors: Kouki FUCHINO, Naoki TSUNO, John W.F. WHITEHEAD, Jiangchao YAO
  • Patent number: 8039636
    Abstract: Methods, composition, and intermediates are disclosed that are useful for making 4-Tetrazolyl-4-phenylpiperidine Compounds according to Formula I, where Ar1 is —C3-C8 cycloalkyl, phenyl, naphthyl, anthryl, phenanthryl or -(5-7-membered) heteroaryl, each being unsubstituted or substituted with one or more R2 groups; Ar2 is phenyl, naphthyl, anthryl, phenanthryl or -(5-7-membered) heteroaryl, each being unsubstituted or substituted with one or more R2 groups; Z1 and Z2 are each independently a —(C1-C4 alkyl) group; R1 is —(CH2)nC(O)N(R3)(R4) where R3 and R4 are each independently H or —(C1-C4 alkyl); R2 is halogen, —C1-C3 alkyl, —O—(C1-C3 alkyl), —NH(C1-C3 alkyl) or —N(C1-C3 alkyl)2; n is an integer ranging from 1 to 4; m is an integer ranging from 0 to 4; and, in certain embodiments, the phenyl moiety attached to the 4-position of the piperidine ring of a compound according to Formula I can be optionally substituted with one or more R2 groups.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: October 18, 2011
    Assignee: Purdue Pharma L.P.
    Inventors: Kevin Brown, Timothy J. Doyle, John W. F. Whitehead
  • Publication number: 20110178090
    Abstract: Compounds of Formula (I): where R1, R2, R5, a, and b are disclosed herein, and pharmaceutically acceptable derivatives thereof (a “Substituted-Quinoxaline-Type Bridged-Piperidine Compound”), compositions comprising an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound, and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 21, 2011
    Inventors: Kouki FUCHINO, Naoki Tsuno, John W.F. Whitehead, Jiangchao Yao
  • Publication number: 20090240056
    Abstract: Methods, composition, and intermediates are disclosed that are useful for making 4-Tetrazolyl-4-phenylpiperidine Compounds according to Formula I, where Ar1 is —C3-C8 cycloalkyl, phenyl, naphthyl, anthryl, phenanthryl or -(5-7-membered) heteroaryl, each being unsubstituted or substituted with one or more R2 groups; Ar2 is phenyl, naphthyl, anthryl, phenanthryl or -(5-7-membered) heteroaryl, each being unsubstituted or substituted with one or more R2 groups; Z1 and Z2 are each independently a —(C1-C4 alkyl) group; R1 is —(CH2)nC(O)N(R3)(R4) where R3 and R4 are each independently H or —(C1-C4 alkyl); R2 is halogen, —C1-C3 alkyl, —O—(C1-C3 alkyl), —NH(C1-C3 alkyl) or —N(C1-C3 alkyl)2; n is an integer ranging from 1 to 4; m is an integer ranging from 0 to 4; and, in certain embodiments, the phenyl moiety attached to the 4-position of the piperidine ring of a compound according to Formula I can be optionally substituted with one or more R2 groups.
    Type: Application
    Filed: May 15, 2009
    Publication date: September 24, 2009
    Inventors: Kevin Brown, Timothy J. Doyle, John W.F. Whitehead
  • Patent number: 7557219
    Abstract: Methods, composition, and intermediates are disclosed that are useful for making 4-Tetrazolyl-4-phenylpiperidine Compounds according to Formula I, where Ar1 is —C3-C8 cycloalkyl, phenyl, naphthyl, anthryl, phenanthryl or -(5-7-membered) heteroaryl, each being unsubstituted or substituted with one or more R2 groups; Ar2 is phenyl, naphthyl, anthryl, phenanthryl or -(5-7-membered) heteroaryl, each being unsubstituted or substituted with one or more R2 groups; Z1 and Z2 are each independently a —(C1-C4 alkyl) group; R1 is —(CH2)nC(O)N(R3)(R4) where R3 and R4 are each independently H or —(C1-C4 alkyl); R2 is halogen, —C1-C3 alkyl, —O—(C1-C3 alkyl), —NH(C1-C3 alkyl) or —N(C1-C3 alkyl)2; n is an integer ranging from 1 to 4; m is an integer ranging from 0 to 4; and, in certain embodiments, the phenyl moiety attached to the 4-position of the piperidine ring of a compound according to Formula I can be optionally substituted with one or more R2 groups.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: July 7, 2009
    Assignee: Purdue Pharma L.P.
    Inventors: Kevin Brown, Timothy J. Doyle, John W. F. Whitehead
  • Publication number: 20090105249
    Abstract: The invention relates to piperidinyl compounds of Formula (I): or a pharmaceutically acceptable salt, prodrug, or solvate thereof, wherein R1-R3 and Z are defined as set forth in the specification. The invention is also directed to an assay useful for identifying such compounds as N-type calcium channel modulators or blockers. The invention is also directed to the compounds of Formula (I) and compounds identified by the above assay, and the use of such compounds to treat, prevent or ameliorate a disorder responsive to the blockade of calcium channels, and particularly N-type calcium channels. Compounds of the present invention are especially useful for treating pain.
    Type: Application
    Filed: October 14, 2005
    Publication date: April 23, 2009
    Applicant: Euro-Celtique S.A.
    Inventors: Elfrida R. Benjamin, Zhengming Chen, Deyou Sha, Laykea Tafesse, Samuel F. Victory, John W.F. Whitehead, Xiaoming Zhou
  • Patent number: 6166041
    Abstract: Novel compounds which are effective PDE IV inhibitors are disclosed. The present invention is directed to compounds having the general formula I ##STR1## wherein: X is a halogen;Q is --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --, a single or a double bond, or --NR.sub.1 --;R.sub.1 is a C.sub.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: December 26, 2000
    Assignee: Euro-Celtique, S.A.
    Inventors: David J. Cavalla, Mark Chasin, John W F Whitehead, Lesley Walton, Andrew C. Mansfield
  • Patent number: 5196534
    Abstract: The invention relates to a process for the preparation of a compound of formula (I) ##STR1## wherein R represent a hydrogen atom or a methyl or ethyl group, which comprises cyclising a compound of formul (IV) ##STR2## Where R represents a hydrogen atom, the compound of formula (IV) may optionally be alkylated to produce a compound in whcich R is methyl or ethyl.The compound of formula (I) is useful as an intermediate in the preparation of 2,3,4,5-tetrahydro-2-[(imidazol-4(or 5)-yl)methyl]-1H-pyrido[4,3-b]indol-1-ones having 5-HT.sub.3 antagonist activity.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: March 23, 1993
    Assignee: Glaxo Group Limited
    Inventors: John W. F. Whitehead, Keith Mills, Ian H. Coates, Alexander W. Oxford, Peter C. North