Patents by Inventor Brian de Costa

Brian de Costa 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: 6441175
    Abstract: Disclosed are compounds of the formula or the pharmaceutically acceptable salts thereof wherein the variables R5, R11, R12, R13, R1, R11, Ar, n, m and L are defined herein. These compounds are useful in treating various neuropsychochological disorders including, for example, schizophrenia, dementia, depression, anxiety, Parkinson-like motor disorders and motion disorders related to the use of neuroleptic agents affective disorders such as schizophrenia and depression as well as certain movement disorders such as Parkinsonism. Furthermore, compounds of this invention may be useful in treating the extrapyramidyl side effects associated with the use of conventional neuroleptic agents. The interaction of 1-(N′-(arylalkylaminoalkyl))aminoisoindole derivatives of the invention with dopamine receptor subtypes is described. This interaction results in the pharmacological activities of these compounds.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: August 27, 2002
    Assignee: Neurogen Corporation
    Inventors: Xiao-shu He, Brian de Costa, Jan W. F. Wasley
  • Publication number: 20020052496
    Abstract: Disclosed are compounds of the formula 1
    Type: Application
    Filed: June 20, 2001
    Publication date: May 2, 2002
    Applicant: Neurogen Corporation
    Inventors: Xiao-Shu He, Brian de Costa, Jan W.F. Wasley
  • Patent number: 6252077
    Abstract: Disclosed are compounds of the formula or the pharmaceutically acceptable salts thereof wherein the 6-membered A ring may be optionally substituted with up to four groups independently selected from halogen, hydroxy, lower alkyl, or lower alkoxy; Ar represents optionally substituted aryl or heteroaryl Z represents carbon or nitrogen provided that where Z is carbon, R11 represents hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy, or phenyl optionally substituted with one or two groups selected from hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy; and where Z is nitrogen, R11 represents an electron pair; R5 is hydrogen or lower alkyl; m represents an integer; n is 0, or an integer; R12 and R13 independently represent lower alkyl; CR′R″ represent a methylene group optionally substituted with lower alkyl; and k is 1, which compounds are useful in treating various neuropsychological disorders including, for example, schizophrenia, dementia, depression, anxi
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: June 26, 2001
    Assignee: Neurogen Corporation
    Inventors: Xiao-shu He, Brian de Costa, Jan W. F. Wasley
  • Patent number: 6245768
    Abstract: Disclosed are compounds of the formula or the pharmaceutically acceptable salts thereof wherein the 6-membered A ring may be optionally substituted with up to four groups independently selected from halogen, hydroxy, lower alkyl, or lower alkoxy; Ar represents optionally substituted aryl or heteroaryl Z represents carbon or nitrogen provided that where Z is carbon, R11 represents hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy, or phenyl optionally substituted with one or two groups selected from hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy; and where Z is nitrogen, R11 represents an electron pair; R5 is hydrogen or lower alkyl, L and m represent integers; n is 0, or an integer; R12 and R13 independently represent lower alkyl; or together may together form an optionally substituted 5-11 membered ring with the nitrogen atoms to which they are bonded;CR′R″ represents a methylene group optionally substituted with lower alkyl;and k is an integer of from 1
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: June 12, 2001
    Assignee: Neurogen Corporation
    Inventors: Xiao-shu He, Brian de Costa, Jan W. F. Wasley
  • Patent number: 6031097
    Abstract: Disclosed are compounds of the formula ##STR1## or the pharmaceutically acceptable salts thereof wherein the 6-membered A ring may be optionally substituted with up to four groups independently selected from halogen, hydroxy, lower alkyl, or lower alkoxy;Ar represents optionally substituted aryl or heteroarylZ represents carbon or nitrogen provided thatwhere Z is carbon, R.sub.11 represents hydrogen, halogen, hydroxy, lower alkyl, or loweralkoxy, or phenyl optionally substituted with one or two groups selected from hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy; andwhere Z is nitrogen, R.sub.11 represents an electron pair;R.sub.5 is hydrogen or lower alkyl;L and m represent integers;n is 0, or an integer;R.sub.12 and R.sub.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: February 29, 2000
    Assignee: Neurogen Corporation
    Inventors: Xiao-shu He, Brian de Costa, Jan W.F. Wasley
  • Patent number: 5932729
    Abstract: Disclosed are compounds of the formula ##STR1## or the pharmaceutically acceptable salts thereof wherein the 6-membered A ring may be optionally substituted with up to four groups independently selected from halogen, hydroxy, lower alkyl, or lower alkoxy;Ar represents optionally substituted aryl or heteroaryl;Z represents carbon or nitrogen provided thatwhere Z is carbon, R.sub.11 represents hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy, or phenyl optionally substituted with one or two groups selected from hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy; andwhere Z is nitrogen, R.sub.11 represents an electron pair;R.sub.5 is hydrogen or lower alkyl;L and m represent integers;n is 0, or an integer;R.sub.12 and R.sub.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: August 3, 1999
    Assignee: Neurogen Corporation
    Inventors: Xiao-shu He, Brian de Costa, Jan W. F. Wasley
  • Patent number: 5744472
    Abstract: Disclosed are compounds of the formula ##STR1## or the pharmaceutically acceptable salts thereof wherein the 6-membered A ring may be optionally substituted with up to four groups independently selected from halogen, hydroxy, lower alkyl, or lower alkoxy;Ar represents optionally substituted aryl or heteroarylZ represents carbon or nitrogen provided thatwhere Z is carbon, R.sub.11 represents hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy, or phenyl optionally substituted with one or two groups selected from hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy; andwhere Z is nitrogen, R.sub.11 represents an electron pair;R.sub.5 is hydrogen or lower alkyl;L and m represent integers;n is 0, or an integer;R.sub.12 and R.sub.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 28, 1998
    Assignee: Neurogen Corporation
    Inventors: Xiao-shu He, Brian de Costa, Jan W. F. Wasley
  • Patent number: 5656632
    Abstract: Disclosed are compounds of the formula ##STR1## or the pharmaceutically acceptable salts thereof wherein the 6-membered A ring may be optionally substituted with up to four groups independently selected from halogen, hydroxy, lower alkyl, or lower alkoxy;Ar represents optionally substituted aryl or heteroarylZ represents carbon or nitrogen provided thatwhere Z is carbon, R.sub.11 represents hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy, or phenyl optionally substituted with one or two groups selected from hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy; andwhere Z is nitrogen, R.sub.11 represents an electron pair;R.sub.5 is hydrogen or lower alkyl;L and m represent integers;n is 0, or an integer;R.sub.12 and R.sub.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: August 12, 1997
    Assignee: Neurogen Corporation
    Inventors: Xiao-shu He, Brian de Costa, Jan W. F. Wasley
  • Patent number: 5602168
    Abstract: Disclosed are compounds of the formula ##STR1## or the pharmaceutically acceptable salts thereof wherein the 6-membered A ring may be optionally substituted with up to four groups independently selected from halogen, hydroxy, lower alkyl, or lower alkoxy;Ar represents optionally substituted aryl or heteroarylZ represents carbon or nitrogen provided thatwhere Z is carbon, R.sub.11 represents hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy, or phenyl optionally substituted with one or two groups selected from hydrogen, halogen, hydroxy, lower alkyl, or lower alkoxy; andwhere Z is nitrogen, R.sub.11 represents an electron pair;R.sub.5 is hydrogen or lower alkyl;L and m represent integers;n is 0, or an integer;R.sub.12 and R.sub.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 11, 1997
    Assignee: Neurogen Corporation
    Inventors: Xiao-shu He, Brian de Costa, Jan W. F. Wasley
  • Patent number: 4661294
    Abstract: Novel synthetic derivatives of vitamin D compounds are disclosed as well as processes for their synthesis. The novel compounds are 1-alpha-thio and acylated, 1-beta-thio derivatives of vitamin D compounds and the glycosylated, hydroxylated, fluorinated, and glycosylated orthoester analogues thereof.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: April 28, 1987
    Assignee: The General Hospital Corporation
    Inventors: Michael F. Holick, Brian de Costa