Patents by Inventor Charles A. Blum

Charles A. Blum 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: 5637724
    Abstract: Disclosed are compounds of the formula: ##STR1## wherein: T is NH, O, or S;X is hydrogen, hydroxyl, lower alkyl, or an optionally substituted amide;the W ring is an optionally substituted aryl or heteroaryl group; and ##STR2## represents an optionally substituted benzo group or an optionally substituted 5, 6, 7, or 8 membered ring.These compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs of agonists, antagonists or inverse agonists for GABAa brain receptors. These compounds are useful in the diagnosis and treatment of anxiety, sleep and seizure disorders, overdose with benzodiazepine drugs and for enhancement of memory.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 10, 1997
    Assignee: Neurogen Corporation
    Inventors: Robert W. DeSimone, Charles A. Blum
  • Patent number: 5637725
    Abstract: Disclosed are compounds of the formula: ##STR1## wherein: T is NH, O, or S;X is hydrogen, hydroxyl, lower alkyl, or an optionally substituted amide;the W ring is an optionally substituted aryl or heteroaryl group; and ##STR2## represents an optionally substituted benzo group or an optionally substituted 5, 6, 7, or 8 membered ring.These compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs of agonists, antagonists or inverse agonists for GABAa brain receptors. These compounds are useful in the diagnosis and treatment of anxiety, sleep and seizure disorders, overdose with benzodiazepine drugs and for enhancement of memory.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 10, 1997
    Assignee: Neurogen Corporation
    Inventors: Robert W. DeSimone, Charles A. Blum
  • Patent number: 5610299
    Abstract: This invention encompasses compounds of formula I: ##STR1## or the pharmaceutically acceptable non-toxic salts thereof wherein: ##STR2## represents: ##STR3## where n is 0, 1, or 2; R.sub.1 and R.sub.2 are hydrogen or straight or branched chain alkyl groups;Y represents various organic and inorganic substituents;W represents an aromatic group substituted with various organic and inorganic substituents;A is CH or N;B is a substituted or unsubstituted carbon or N; andE is hydrogen or straight or branched alkyl groups.These compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs thereof and are useful in the diagnosis and treatment of anxiety, sleep, and seizure disorders, overdose with benzodiazepine type drugs, and enhancement of alertness.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: March 11, 1997
    Assignee: Neurogen Corporation
    Inventors: Charles Blum, Alan Hutchison
  • Patent number: 5606059
    Abstract: This invention encompasses compounds of formula (I) and pharmaceutically acceptable non-toxic salts thereof wherein (Ia) represents (i) or (ii) where n is 0, 1, or 2: R.sub.1 and R.sub.2 are hydrogen or straight or branched chain alkyl groups; Y various organic and inorganic substituents; W represents an aromatic group substituted with various organic and inorganic substituents; A is CH or N; B is a substituted or unsubstituted carbon or N; and E is hydrogen or straight or branched alkyl groups. These compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs thereof and are useful in the diagnosis and treatment of anxiety, sleep, and seizure disorders, overdose with benzodiazepine type drugs, and enhancement of alertness.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: February 25, 1997
    Assignee: Neurogen Corporation
    Inventors: Charles Blum, Alan Hutchison
  • Patent number: 5367077
    Abstract: The present invention encompasses compounds of the formula: ##STR1## and pharmaceutically acceptable non-toxic salts thereof wherein: A represents nitrogen or C--H, andB represents nitrogen or C--H, with the proviso that when A is nitrogen, B is C--H, and when B is nitrogen, A is C--H;n is 0, 1, or 2;Y represents nitrogen or carbon, each of which is substituted with various organic or inorganic substituents;W represents an aromatic group unsubstituted or substituted with various organic or inorganic substituents; andR1 and R2 are the same or different and represent hydrogen or lower alkyl.These compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs thereof and are useful in the diagnosis and treatment of anxiety, sleep, and seizure disorders, overdose with benzodiazepine type drugs, and enhancement of alertness.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: November 22, 1994
    Assignee: Neurogen Corporation
    Inventors: Charles A. Blum, Alan J. Hutchison, Raynmond F. Horvath
  • Patent number: 5306819
    Abstract: The present invention encompasses structures of the formula: ##STR1## and the pharmaceutically acceptable non-toxic salts thereof wherein: ##STR2## where W represents an aromatic group substituted with various organic and inorganic substituents;X, Y are hydrogen, halogen, hydroxy or amino with the proviso that at least X or Y is hydroxy;A, B C, and D, represent nitrogen or a carbon atom substituted with various organic and inorganic substituents;E represents oxygen, sulfur or substituted nitrogen;R.sub.3, R.sub.4, R.sub.12, and R.sub.13 are variables representing various organic and inorganic substituents; andn is 0, 1, or 2.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: April 26, 1994
    Assignee: Neurogen Corporation
    Inventors: Pamela Albaugh, Alan Hutchison, Charles Blum
  • Patent number: 5286860
    Abstract: This invention encompasses compounds of the formula: ##STR1## and pharmaceutically acceptable non-toxic salts thereof wherein: ##STR2## represents: ##STR3## where n is 0, 1, or 2; R.sub.1 and R.sub.2 are hydrogen or straight or branched chain alkyl groups;Y represents various organic and inorganic substituents;W represents an aromatic group substituted with various organic and inorganic substituents;A is CH or N;B is a substituted or unsubstituted carbon or N; andE is hydrogen or straight or branched alkyl groupsThese compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs thereof and are useful in the diagnosis and treatment of anxiety, sleep, and seizure disorders, overdose with benzodiazepine type drugs, and enhancement of alertness.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: February 15, 1994
    Assignee: Neurogen Corporation
    Inventors: Charles Blum, Alan Hutchison