Patents by Inventor Keith Ryther

Keith Ryther 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: 20080090798
    Abstract: Heterocyclic substituted aminoazacyclic compounds of formula I Z-R3??I, wherein Z is a defined aminoazacycle and R3 is a defined heterocycle moiety, pharmaceutical compositions of these compounds, and use of said compositions to control synaptic transmission in mammals.
    Type: Application
    Filed: December 12, 2007
    Publication date: April 17, 2008
    Applicant: ABBOTT LABORATORIES
    Inventors: Michael Schrimpf, Kevin Sippy, Jerome Daanen, Keith Ryther, Jianguo Ji
  • Publication number: 20080064699
    Abstract: The present invention relates to compounds of formula (I), or pharmaceutically acceptable salts, prodrugs, salts of prodrugs, or combinations thereof, wherein R1, R2, R3, R4, and L2, are defined in the specification, compositions comprising such compounds, and methods of treating conditions and disorders using such compounds and compositions.
    Type: Application
    Filed: May 31, 2007
    Publication date: March 13, 2008
    Inventors: Alan Florjancic, Michael Dart, Keith Ryther, Arturo Perez-Medrano, William Carroll, Meena Patel, Karin Tietje, Tongmei Li, Teodozyj Kolasa, Megan Gallagher, Sridhar Peddi, Jennifer Frost, Derek Nelson
  • Publication number: 20080058335
    Abstract: The present invention relates to compounds of formula (I), or pharmaceutical salts, prodrugs, salts of prodrugs, or combinations thereof, wherein R1, R2, R3, and L1 are defined in the specfication, compositions comprising such compounds, and methods of treating conditions and disorders using such compounds and compositions. The present invention also relates to compounds of formula (II), or pharmaceutical salts, prodrugs, salts of prodrugs, or combinations thereof, wherein R1a, R2a and (Rx)n are as defined in the specification, compositions comprising such compounds, and methods of treating conditions and disorders using such compounds and compositions.
    Type: Application
    Filed: May 30, 2007
    Publication date: March 6, 2008
    Inventors: Alan Florjancic, Michael Dart, Keith Ryther, Arturo Perez-Medrano, William Carroll, Meena Patel, Karin Tietje, Tongmei Li, Teodozyj Kolasa, Megan Gallagher, Sridhar Peddi, Jennifer Frost, Derek Nelson
  • Publication number: 20050101602
    Abstract: Compounds of formula (I) Z-Ar1—Ar2??(I) wherein Z is a diazabicyclic amine, Ar1 is a 5- or 6-membered aromatic ring, and Ar2 is selected from the group consisting of an unsubstituted or substituted 5- or 6-membered heteroaryl ring; unsubstituted or substituted bicyclic heteroaryl ring; 3,4-(methylenedioxy)phenyl; carbazolyl; tetrahydrocarbazolyl; naphthyl; and phenyl; wherein the phenyl is substituted with 0, 1, 2, or 3 substituents in the meta- or para-positions. The compounds are useful in treating conditions or disorders prevented by or ameliorated by ?7 nAChR ligands. Also disclosed are pharmaceutical compositions comprising compounds of formula (I) and methods for using such compounds and compositions.
    Type: Application
    Filed: September 16, 2004
    Publication date: May 12, 2005
    Inventors: Anwer Basha, William Bunnelle, Michael Dart, Megan Gallagher, Jianguo Ji, Tao Li, Jennifer Pace, Keith Ryther, Karin Tietje, Kathleen Mortell, Diana Nersesian, Michael Schrimpf
  • Publication number: 20050065178
    Abstract: Compounds of formula (I) Z-Ar1—Ar2??(I) wherein Z is a diazabicyclic amine, Ar1 is a 5- or 6-membered aromatic ring, and Ar2 is selected from an unsubstituted or substituted 5-membered heteroaryl ring; an unsubstituted or substituted 6-membered heteroaryl ring; 3,4-(methylenedioxy)phenyl; and phenyl substituted with 0, 1, 2, or 3 substituents in the meta- or para-positions. The compounds are useful in treating conditions or disorders prevented by or ameliorated by ?7 nAChR ligands. Also disclosed are pharmaceutical compositions comprising compounds of formula (I) and methods for using such compounds and compositions.
    Type: Application
    Filed: September 19, 2003
    Publication date: March 24, 2005
    Inventors: Anwer Basha, William Bunnelle, Michael Dart, Megan Gallagher, Jianguo Ji, Tao Li, Jennifer Pace, Keith Ryther, Karin Tietje
  • Publication number: 20050043291
    Abstract: Heterocyclic substituted aminoazacyclic compounds of formula I Z-R3 ??I, wherein Z is a defined aminoazacycle and R3 is a defined heterocycle moiety, pharmaceutical compositions of these compounds, and use of said compositions to control synaptic transmission in mammals.
    Type: Application
    Filed: September 22, 2004
    Publication date: February 24, 2005
    Inventors: Michael Schrimpf, Kevin Sippy, Jerome Daanen, Keith Ryther, Jianguo Ji
  • Patent number: 6437138
    Abstract: Novel 3-pyridyloxymethyl heterocyclic ether compounds of the formula: or the pharmaceutically-acceptable salts or prodrugs thereof are selective and potent ligands at neuronal nicotinic cholinergic channel receptors, and are effective in controlling synaptic transmission. Key intermediates and processes using this key intermediates to produce compounds of formula I with the variables defined in the specification are also described.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: August 20, 2002
    Assignee: Abbott Laboratories
    Inventors: Nan-Horng Lin, Yun He, Mark W. Holladay, Keith Ryther, Yihong Li, Hao Bai
  • Patent number: 5629325
    Abstract: Novel 3-pyridyloxymethyl heterocyclic ether compounds of the formula: ##STR1## or the pharmaceutically-acceptable salts or prodrugs thereof are selective and potent ligands at neuronal nicotinic cholinergic channel receptors, and are effective in controlling synaptic transmission.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: May 13, 1997
    Assignee: Abbott Laboratories
    Inventors: Nan-Horng Lin, Yun He, Mark W. Holladay, Keith Ryther, Yihong Li