Patents by Inventor David J. Blythin

David J. Blythin 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: 7956189
    Abstract: Disclosed are maleate, tosylate, fumarate, and oxalate salts of the compound 5-(1(S)-Amino-2-Hydroxyethyl)-N-[(2,4-Difluorophenyl)-Methyl]-2-[8-Methoxy-2-(Trifluoromethyl)-5-Quinoline]-4-Oxazolecarboxamide, represented by Formula I, and methods of preparing the same.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: June 7, 2011
    Assignee: Schering Corporation
    Inventors: Xiaoming Chen, Xiao Chen, Jianguo Yin, Xiaoyong Fu, David J. Blythin, Rongze Kuang, Ho-Jane Shue, Scott Trzaska, Chee-Wah Tang, Vincenzo Liotta, Zaher Shabani
  • Patent number: 6635630
    Abstract: Compound represented by the structural formula or a pharmaceutically acceptable salt thereof, wherein Ar1 and Ar2 are optionally substituted heteroaryl or optionally substituted phenyl; X1 is —O—, —S—, —SO—, —SO2—, —NR12—, —NCOR12— or —NR12SO2R15;  is selected from the group consisting of X2 is —O—, —S— or —NR5—; Y is ═O, ═S or ═NR11; Y1 is H, C1-C6 alkyl, —NR17R13, —SCH3, R19-aryl(CH2)n6—, R19-heteroaryl-(CH2)n6—, —(CH2)n6—heterocycloalkyl, —(C1-C3)alkyl-NH—C(O)O(C1-C6)alkyl or —NHC(O)R15; R5 is H or —(CH2)n1—G, wherein n1 is 0-5, G is H, —CF3, —CHF2, —CH2F, —OH, —O—(C1-C6 alkyl), —SO2R13, —O—(C3-C8 cycloalkyl), —NR13R14, —SO2NR13R14, —NR13SO2R15, —NR13COR12, —NR12(CONR13
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: October 21, 2003
    Assignee: Schering Corporation
    Inventors: Neng-Yang Shih, Ho-Jane Shue, Gregory A. Reichard, Sunil Paliwal, David J. Blythin, John J. Piwinski, Dong Xiao, Xiao Chen
  • Publication number: 20030064980
    Abstract: Compound represented by the structural formula 1
    Type: Application
    Filed: June 6, 2002
    Publication date: April 3, 2003
    Inventors: Neng-Yang Shih, Ho-Jane Shue, Gregory A. Reichard, Sunil Paliwal, David J. Blythin, John J. Piwinski, Dong Xiao, Xiao Chen
  • Publication number: 20020123491
    Abstract: Compound represented by the structural formula 1
    Type: Application
    Filed: December 14, 2000
    Publication date: September 5, 2002
    Inventors: Neng-Yang Shih, Ho-Jane Shue, Gregory A. Reichard, Sunil Paliwal, David J. Blythin, John J. Piwinski, Dong Xiao, Xiao Chen
  • Patent number: 6436928
    Abstract: A compound represented by the structural formula or a pharmaceutically acceptable salt thereof, wherein Ar1 and Ar2 are optionally substituted heteroaryl or optionally substituted phenyl; X1 is —O—, —SO0-2—, —NR12—, —NCOR12— or —NR12SO2R15;  is X2 is —O—, —S— or optionally substituted nitrogen; Y is ═O, ═S or ═NR11; Y1 is H, alkyl, —NR17R13, —SCH3, R19-aryl(CH2)n6—, R19-heteroaryl-(CH2)n6—, —(CH2)n6-heterocycloalkyl, -alkyl-NH—C(O)O-alkyl or —NHC(O)R15; R1, R2, R3 and R7 are H, alkyl, OH-alkyl, cycloalkyl, —CHF2, —CH2F or —CF3; or R1 and R2 form an alkylene ring; or R1 and R2 together are ═O; R6 is H, alkyl, —OR13 or —SR12; and the remaining variables are as defined in the specification, is disclosed, as well as a pharmaceutical compositions comprising said compound, methods of
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: August 20, 2002
    Assignee: Schering Corporation
    Inventors: Neng-Yang Shih, Ho-Jane Shue, Gregory A. Reichard, Sunil Paliwal, David J. Blythin, John J. Piwinski, Dong Xiao, Xiao Chen
  • Patent number: 6051575
    Abstract: The invention relates to compounds of the formula ##STR1## wherein Z, R.sub.c, y, m, u, Ar.sub.2, n, X, R.sub.c', I and Ar.sub.2 are as described herein. These compounds are neurokinin antagonists. These compounds are useful in the treatment of chronic airway diseases such as asthma.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: April 18, 2000
    Assignee: Schering Corporation
    Inventors: David J. Blythin, Xiao Chen, Richard J. Friary, Kevin D. McCormick, John J. Piwinski, Neng-Yang Shih, Ho-Jane Shue
  • Patent number: 5981520
    Abstract: The invention relates to compounds of the formula ##STR1## These compounds are neurokinin antagonists. These compounds are useful in the treatment of chronic airway diseases such as asthma.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: November 9, 1999
    Assignee: Schering Corporation
    Inventors: Ho-Jane Shue, Neng-Yang Shih, David J. Blythin, Xiao Chen, Wing C. Tom, John J. Piwinski, Kevin D. McCormick
  • Patent number: 5968929
    Abstract: The invention relates to compounds of the formula ##STR1## wherein Z, R.sub.c, y, m, u, Ar.sub.2, n, X, R.sub.c', l and Ar.sub.2 are as described herein. These compounds are neurokinin antagonists. These compounds are useful in the treatment of chronic airway diseases such as asthma.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: October 19, 1999
    Assignee: Schering Corporation
    Inventors: David J. Blythin, Xiao Chen, Richard J. Friary, Kevin D. McCormick, John J. Piwinski, Neng-Yang Shih, Ho-Jane Shue
  • Patent number: 5929236
    Abstract: Disclosed are compounds of the formula I wherein:Y represents --CO.sub.2 H, --CO.sub.2 R.sup.6, --C(O)NHR.sup.7, --SO.sub.2 H, --SO.sub.3 H, --SO.sub.3 R.sup.6, --SO.sub.2 NHR.sup.7, --C(O)--N(OH)--R.sup.8, or a group of the formula ##STR1## or a pharmaceutically acceptable addition salt or solvate thereof. Also disclosed are pharmaceutical compositions containing compounds of Formula I. Further disclosed is a method for treating or preventing respiratory depression, epileptic seizures or other central nervous system disorders, and for enhancing cognitive performance, by administering an effective amount of a compound of Formula I.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: July 27, 1999
    Assignee: Schering Corporation
    Inventors: Shen-Chun Kuo, David J. Blythin, William Kreutner
  • Patent number: 5892039
    Abstract: The invention relates to compounds of the formula ##STR1## These compounds are neurokinin antagonists. These compounds are useful in the treatment of chronic airway diseases such as asthma.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: April 6, 1999
    Assignee: Schering Corporation
    Inventors: Ho-Jane Shue, Neng-Yang Shih, David J. Blythin, Xiao Chen, John J. Piwinski, Kevin D. McCormick
  • Patent number: 5869488
    Abstract: The invention relates to compounds of the formula ##STR1## wherein Z, R.sub.c, y, m, u, Ar.sub.2, n, X, R.sub.c', I and Ar.sub.2 are as described herein. These compounds are neurokinin antagonists. These compounds are useful in the treatment of chronic airway diseases such as asthma.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: February 9, 1999
    Assignee: Schering Corporation
    Inventors: Ho-Jane Shue, Neng-Yang Shih, David J. Blythin, Xiao Chen, John J. Piwinski, Kevin D. McCormick
  • Patent number: 5798359
    Abstract: The invention relates to compounds of the formulas ##STR1## wherein Z, R.sub.c, y, x, l.sub.1, l.sub.2, l.sub.3, u, R.sub.4, R.sub.c', n, R.sub.1, R.sub.2, and R.sub.3, are as described herein. These compounds are neurokinin antagonists. These compounds are useful in the treatment of chronic airway diseases such as asthma.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: August 25, 1998
    Assignee: Schering Corporation
    Inventors: Ho-Jane Shue, Neng-Yang Shih, John Piwinski, Xiao Chen, David J. Blythin
  • Patent number: 5795894
    Abstract: The invention relates to compounds of the formula ##STR1## These compounds are neurokinin antagonists. These compounds are useful in the treatment of chronic airway diseases such as asthma.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: August 18, 1998
    Assignee: Schering Corporation
    Inventors: Ho-Jane Shue, Neng-Yang Shih, David J. Blythin, Xiao Chen, Wing C. Tom, John J. Piwinski, Kevin D. McCormick
  • Patent number: 5760034
    Abstract: Nitrogen-containing heterocyclic substituted naphthyridinones and methods and compositions employing such compounds are disclosed.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: June 2, 1998
    Assignee: Schering Corporation
    Inventor: David J. Blythin
  • Patent number: 5719156
    Abstract: The invention relates to compounds of the formulas ##STR1## wherein Z, R.sub.c, y, x, l.sub.1, l.sub.2, l.sub.3, u, R.sub.4,R.sub.c', n, R.sub.1, R.sub.2, and R.sub.3, are as described herein. These compounds are neurokinin antagonists. These compounds are useful in the treatment of chronic airway diseases such as asthma.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: February 17, 1998
    Assignee: Schering Corporation
    Inventors: Ho-Jane Shue, Neng-Yang Shih, John Piwinski, Xiao Chen, David J. Blythin
  • Patent number: 5461057
    Abstract: A compound of formula I ##STR1## wherein X, V, W, Y, Z, R, a, b, c, and d are as described herein. These compounds are useful in the treatment of tumors, allergies, bronchoconstriction and CNS diseases and conditions.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: October 24, 1995
    Assignee: Schering Corporation
    Inventors: Joel G. Berger, David J. Blythin, Ronald J. Doll, Jonathan A. Pachter
  • Patent number: 5350755
    Abstract: A method of treating hyperproliferative skin disease in a mammal with substituted spiro pyridine derivatives is disclosed. The compounds may be administered topically or by other conventional routes of administration.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: September 27, 1994
    Assignee: Schering Corporation
    Inventor: David J. Blythin
  • Patent number: 5118683
    Abstract: Compounds of the formula I ##STR1## wherein R.sup.5 represents C.sub.1 to C.sub.6 -alkyl or the group --(CH.sub.2).sub.n --Z--(CH.sub.2).sub.m --Ar;Z represents O, S or --CH.sub.2 --;n represents an integer of 1 to 8;m represents zero or an integer of 1 to 8;one of R.sup.1 and R.sup.2 represents the group ##STR2## and the other represents hydrogen or R.sup.7 CO--; R.sup.7 is C.sub.1 to C.sub.10 alkyl, C.sub.3 to C.sub.8 cycloalkyl, aryl, heteroaryl, --N(R.sup.9 R.sup.10), or R.sup.11 O--; R.sup.3, R.sup.4, R.sup.9, and R.sup.10 are each independently selected from hydrogen, C.sub.1 to C.sub.6 alkyl and Ar.sup.1 ; R.sup.6 and R.sup.11 are each independently C.sub.1 -C.sub.8 alkyl; Ar and Ar.sup.1 are each independently selected from the group consisting of phenyl or phenyl substituted by one or two substituents selected from the group consisting of R.sup.12, R.sup.13 O--; R.sup.14 S(O).sub.x --, R.sup.15 CO--, (R.sup.16 R.sup.17)NCO--, F, Cl, Br, I, NO.sub.2, CF.sub.3, CN, or phenyl; R.sup.12, R.sup.13, R.sup.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: June 2, 1992
    Assignee: Schering Corporation
    Inventors: David J. Blythin, Ho-Jane Shue
  • Patent number: 5037826
    Abstract: 1-Substituted naphthyridines and pyridopyrazines are disclosed which are useful in treating allergic reactions, inflammation, peptic uclers and hyperproliferative skin diseases and in suppressing the immune response in mammals. Pharmaceutical compositions and methods of treatment employing such compounds are also disclosed.
    Type: Grant
    Filed: December 18, 1986
    Date of Patent: August 6, 1991
    Assignee: Schering Corporation
    Inventors: David J. Blythin, Marvin I. Siegel, Sidney R. Smith
  • Patent number: 5011860
    Abstract: Aryl-substituted naphthyridines and pyridopyrazines are disclosed which are useful in treating allergic reactions, inflammation, peptic ulcers and/or hyperproliferative skin disease. Pharmaceutical compositions and methods of treatment employing such compounds are also disclosed.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: April 30, 1991
    Assignee: Schering Corporation
    Inventors: David J. Blythin, Ho-Jane Shue