Patents by Inventor David G. Wettlaufer

David G. Wettlaufer 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: 5686626
    Abstract: This invention relates to 1,3-dihydro-1-(pyridinylamino)-2H-indol-2-ones of the formula ##STR1## where R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen, loweralkyl, aryl, arylloweralkyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; or R.sub.2 and R.sub.3 together form a cycloalkane ring of 4 to 6 carbons or a spiro-fused aryl cycloalkane or heterocycloalkyl selected from the group consisting of piperidine and tetrahydropyran; X and Y are independently hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; m and n are independently integers of 1 to 3, the pharmaceutically acceptable acid addition salts thereof and, where applicable the optical, geometrical and stereoisomers and racemic mixtures thereof. The compounds of this invention display utility as analgesics, anticonvulsants, for enhancing memory and for the treatment of Alzheimer's disease.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: November 11, 1997
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: Richard C. Effland, David G. Wettlaufer
  • Patent number: 5621116
    Abstract: This invention relates to 1,3-dihydro-1-(pyridinylamino)-2H-indol-2-ones of the formula ##STR1## where R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen, loweralkyl, aryl, arylloweralkyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienyhmethyl, thienylethyl; or R.sub.2 and R.sub.3 together form a cycloalkane ring of 4 to 6 carbons or a spiro-fused aryl cycloalkane or heterocycloalkyl selected from the group consisting of piperidine and tetrahydropyran; X and Y are independently hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; m and n are independently integers of 1 to 3, the pharmaceutically acceptable acid addition salts thereof and, where applicable the optical, geometrical and stereoisomers and racemic mixtures thereof. The compounds of this invention display utility as analgesics, anticonvulsants, for enhancing memory and for the treatment of Alzheimer's disease.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: April 15, 1997
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: Richard C. Effland, David G. Wettlaufer
  • Patent number: 5605925
    Abstract: There are disclosed 1-aminoacetamidopyrroles and 1-amino-2-(substituted)pyrroles and related compounds of the formula ##STR1## wherein all substituents are defined herein, which are useful as glycine partial agonists and for the enhancement of learning and memory and for the treatment of memory dysfunctions associated with neurodegenerative disorders and are thus indicated in the treatment of Alzheimer's disease and other senile dementias.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: February 25, 1997
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: Lawrence L. Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
  • Patent number: 5591856
    Abstract: Novel (pyrrolidinyl)phenyl carbamates and related compounds, intermediates and processes for the preparation thereof, and methods of relieving memory dysfunction utilizing the carbamates and related compounds, or compositions thereof are disclosed.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: January 7, 1997
    Assignee: Hoechst Roussel Pharmaceuticals Inc.
    Inventors: David G. Wettlaufer, Peter A. Nemoto
  • Patent number: 5580987
    Abstract: There is disclosed a process for the preparation of 1-aminoacetamidopyrroles and 1-amino-2-(substituted)-pyrroles and related compounds of the formula ##STR1## wherein all substituents are defined herein, which are useful as glycine partial agonists and for the enhancement of learning and memory and for the treatment of memory dysfunctions associated with neurodegenerative disorders and are thus indicated in the treatment of Alzheimer's disease and other senile dementias which comprises treating a 1-phthalimidopyrrole of the formula ##STR2## with a base to yield a 1-aminopyrrole of the formula ##STR3## which is reacted with a compound of the formula ##STR4## to obtain the compound of Formula (I).
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: December 3, 1996
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: Lawrence L. Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
  • Patent number: 5576446
    Abstract: There are disclosed 1-aminoacetamidopyrroles and 1-amino-2-(substituted)pyrroles and related compounds of the formula ##STR1## wherein all substituents are defined herein, which are useful as glycine partial agonists and for the enhancement of learning and memory and for treatment of memory dysfunctions associated with neurodegenerative disorders and are thus indicated in the treatment of Alzheimer's disease and other senile dementias.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: November 19, 1996
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: Lawrence L. Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
  • Patent number: 5554750
    Abstract: The invention pertains to (pyrrolidinyl)phenyl carbamates and related compounds, intermediates and processes for the preparation thereof, and methods of relieving memory dysfunction utilizing the carbamates and related compounds, or compositions thereof are disclosed.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: September 10, 1996
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: David G. Wettlaufer, Peter A. Nemoto
  • Patent number: 5464846
    Abstract: This application is a continuation-in-part of pending U.S. patent application Ser. No. 388,437, filed Aug. 2, 1989.This invention relates to 1,3-dihydro-1-(pyridinylamino)-2H-indol-2-ones of the formula ##STR1## where R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen, loweralkyl, aryl, arylloweralkyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; or R.sub.2 and R.sub.3 together form a cycloalkane ring or 4 to 6 carbons or a spiro-fused aryl cycloalkane or heterocycloalkyl selected from the group consisting of piperidine and tetrahydropyran; X and Y are independently hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; m and n are independently integers of 1 to 3, the pharmaceutically acceptable acid addition salts thereof and, where applicable the optical, geometrical and stereoisomers and racemic mixtures thereof.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: November 7, 1995
    Assignee: Hoechst-Roussel Pharmaceuticals, Inc.
    Inventors: Richard C. Effland, David G. Wettlaufer
  • Patent number: 5428053
    Abstract: There are disclosed 1-aminoacetamidopyrroles and 1-amino-2-(substituted) pyrroles and related compounds of the formula ##STR1## wherein all substituents are defined herein, which are useful as glycine partial agonists and for the enhancement of learning and memory and for the treatment of memory dysfunctions associated with neurodegenerative disorders and are thus indicated in the treatment of Alzheimer's disease and other senile dementias.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: June 27, 1995
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Lawrence L. Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
  • Patent number: 5405845
    Abstract: Novel (pyrrolidinyl)phenyl carbamates and related compounds, intermediates and processes for the preparation thereof, and methods of relieving memory dysfunction utilizing the carbamates and related compounds, or compositions thereof are disclosed.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: April 11, 1995
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: David G. Wettlaufer, Peter A. Nemoto
  • Patent number: 5338739
    Abstract: Novel (pyrrolidinyl)phenyl carbamates and related compounds, intermediates and processes for the preparation thereof, and methods of relieving memory dysfunction utilizing the carbamates and related compounds, or compositions thereof are disclosed.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: August 16, 1994
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: David G. Wettlaufer, Peter A. Nemoto
  • Patent number: 5296488
    Abstract: This invention relates to 2,3-dihydro-1-(pyridinylamino)-indoles of the formula ##STR1## wherein R.sub.1 is hydrogen, loweralkyl, aryl, arylloweralkyl, alkenyl, alkynyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; R.sub.2 and R.sub.3 are independently hydrogen, loweralkyl, aryl, arylloweralkyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; or R.sub.2 and R.sub.3 together form a cycloalkane ring of 4 to 6 carbons or a spiro-fused aryl or heteroaryl; the term heteroaryl signifying a group selected from pyridine or thiophene; X and Y are independently hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; m and n are independently integers of 1 to 3, or a pharmaceutically acceptable acid addition salt thereof or where appropriate, an optical, geometrical or stereoisomer or racemic mixture thereof.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: March 22, 1994
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Richard C. Effland, David G. Wettlaufer, Joseph T. Klein
  • Patent number: 5274116
    Abstract: There are disclosed 1-aminoacetamidopyrroles and 1-amino-2-(substituted)-pyrroles and related compounds of the formula ##STR1## wherein all substituents are defined herein, which are useful as glycine partial agonists and for the enhancement of learning and memory and for the treatment of memory dysfunctions associated with neurodegenerative disorders and are thus indicated in the treatment of Alzheimer's disease and other senile dementias.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: December 28, 1993
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Lawrence Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
  • Patent number: 5260319
    Abstract: Novel thienobenzoxepins and naphthothiophenes, intermediates and processes for the preparation thereof, and methods of alleviating pain utilizing compounds or compositions thereof are disclosed.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: November 9, 1993
    Assignee: Hoechst-Roussel Pharmaceuticals Incorporated
    Inventors: Richard C. Effland, David G. Wettlaufer
  • Patent number: 5256672
    Abstract: This invention relates to 6,7-dihydro-3-phenyl-1,2-benzisoxazol-4(5H)-ones and -ols of the formula ##STR1## wherein X is ##STR2## or loweralkyl; Y is hydrogen, halogen, loweralkyl, loweralkoxy, trifluoromethyl, nitro or amino; R is H when the bond between the oxygen atom and the carbon atom in question is a single bond; otherwise the dotted line signifies part of a double bond to the oxygen atom; R.sub.1 is hydrogen, loweralkyl or arylloweralkyl; R.sub.2 and R.sub.3 are independently hydrogen, loweralkyl or arylloweralkyl, or R.sub.2 and R.sub.3 taken together with the nitrogen atom form an optionally substituted heterocycle selected from the group consisting of piperidinyl, pyrtolidinyl, morpholinyl, imidazol-1-yl, 1-piperazinyl, said substituents being hydrogen or loweralkyl; 4-substituted-1-piperazinyl of the formula where R.sub.
    Type: Grant
    Filed: December 13, 1992
    Date of Patent: October 26, 1993
    Assignee: Hoechst-Roussel Pharmaceuticals Incorporated
    Inventors: David G. Wettlaufer, Gregory M. Shutske, Peter A. Nemoto
  • Patent number: 5227388
    Abstract: Novel naphtho[2,3-b]thiophen-9(4H)-ones of the formula ##STR1## wherein R is loweralkyl or arylloweralkyl; X and Y are independently hydrogen, loweralkyl, halogen, loweralkoxy, or trifluoromethyl; W is CH.sub.2, CHOH, or C.dbd.O; n is 1 or 2; an optical isomer or pharmaceutically acceptable salt thereof, processes for the preparation thereof, and methods of alleviating pain utilizing compounds or compositions thereof are disclosed.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: July 13, 1993
    Assignee: Hoechst-Roussel Pharmaceuticals Incorporated
    Inventors: Richard C. Effland, David G. Wettlaufer
  • Patent number: 5180834
    Abstract: This invention relates to 6,7-dihydro-3-phenyl-1,2-benzisoxazol-4(5H)-ones and -ols of the formula ##STR1## wherein X is ##STR2## or loweralkyl; Y is hydrogen, halogen, loweralkyl, loweralkoxy, trifluoromethyl, nitro or amino; R is H when the bond between the oxygen atom and the carbon atom in question is a single bond; otherwise the dotted line signifies part of a double bond to the oxygen atom; R.sub.1 is hydrogen, loweralkyl or arylloweralkyl; R.sub.2 and R.sub.3 are independently hydrogen, loweralkyl or arylloweralkyl, or R.sub.2 and R.sub.3 taken together with the nitrogen atom form an optionally substituted heterocycle selected from the group consisting of piperidinyl, pyrrolidinyl, morpholinyl, imidazol-1-yl, 1-piperazinyl, said substituents being hydrogen or loweralkyl;4-substituted-1-piperazinyl of the formula ##STR3## R.sub.8 is hydrogen or --OH; R.sub.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: January 19, 1993
    Assignee: Hoechst-Roussel Pharmaceuticals Incorporated
    Inventors: David G. Wettlaufer, Gregory M. Shutske, Peter A. Nemoto
  • Patent number: 5179099
    Abstract: This invention relates to 2,3-dihydro-1-(pyridinylamino)-indoles of the formula ##STR1## wherein R.sub.1 is hydrogen, loweralkyl, aryl, arylloweralkyl, alkenyl, alkynyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; R.sub.2 and R.sub.3 and independently hydrogen, loweralkyl, aryl, arylloweralkyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; or R.sub.2 and R.sub.3 together form a cycloalkane ring of 4 to 6 carbons or a spiro-fused aryl or heteroaryl; the term heteroaryl signifying a group selected from pyridine or thiophene; X and Y are independently hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; m and n are independently integers of 1 to 3, or a pharmaceutically acceptable acid addition salt thereof or where appropriate, an optical, geometrical or stereoisomer or racemic mixture thereof.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: January 12, 1993
    Assignee: Hoechst-Roussel Pharmaceuticals Incorporated
    Inventors: Richard C. Effland, David G. Wettlaufer, Joseph T. Klein
  • Patent number: 5179119
    Abstract: This invention relates to 1,3-dihydro-1-(pyridinylamino)-2H-indol-2-ones of the formula ##STR1## where R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen, loweralkyl, aryl, arylloweralkyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; or R.sub.2 and R.sub.3 together form a cycloalkane ring of 4 to 6 carbons or a spiro-fused aryl cycloalkane or heterocycloalkyl selected from the group consisting of piperidine and tetrahydropyran; X and Y are independently hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; m and n are independently integers of 1 to 3, the pharmaceutically acceptable acid addition salts thereof and, where applicable the optical, geometrical and stereoisomers and racemic mixtures thereof. The compounds of this invention display utility as analgesics, anticonvulsants, for enhancing memory and for the treatment of Alzheimer's disease.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: January 12, 1993
    Assignee: Hoechst-Roussel Pharmaceuticals Incorporated
    Inventors: Richard C. Effland, David G. Wettlaufer
  • Patent number: 5145965
    Abstract: Novel 2,6-methanopyrrolo-3-benzazocines, intermediates, processes for the preparation thereof, and methods for alleviating pain utilizing compounds or compositions thereof are disclosed.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: September 8, 1992
    Assignee: Hoechst-Roussel Pharmaceuticals Incorporated
    Inventors: Richard C. Allen, David G. Wettlaufer