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).
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Patent number: 5686626Abstract: 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: GrantFiled: April 28, 1995Date of Patent: November 11, 1997Assignee: Hoechst Marion Roussel, Inc.Inventors: Richard C. Effland, David G. Wettlaufer
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Patent number: 5621116Abstract: 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: GrantFiled: April 27, 1995Date of Patent: April 15, 1997Assignee: Hoechst Marion Roussel, Inc.Inventors: Richard C. Effland, David G. Wettlaufer
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Patent number: 5605925Abstract: 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: GrantFiled: November 7, 1994Date of Patent: February 25, 1997Assignee: Hoechst Marion Roussel, Inc.Inventors: Lawrence L. Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
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Patent number: 5591856Abstract: 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: GrantFiled: January 10, 1995Date of Patent: January 7, 1997Assignee: Hoechst Roussel Pharmaceuticals Inc.Inventors: David G. Wettlaufer, Peter A. Nemoto
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Patent number: 5580987Abstract: 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: GrantFiled: November 7, 1994Date of Patent: December 3, 1996Assignee: Hoechst Marion Roussel, Inc.Inventors: Lawrence L. Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
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Patent number: 5576446Abstract: 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: GrantFiled: November 7, 1994Date of Patent: November 19, 1996Assignee: Hoechst Marion Roussel, Inc.Inventors: Lawrence L. Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
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Patent number: 5554750Abstract: 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: GrantFiled: May 8, 1995Date of Patent: September 10, 1996Assignee: Hoechst-Roussel Pharmaceuticals Inc.Inventors: David G. Wettlaufer, Peter A. Nemoto
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Patent number: 5464846Abstract: 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: GrantFiled: May 13, 1994Date of Patent: November 7, 1995Assignee: Hoechst-Roussel Pharmaceuticals, Inc.Inventors: Richard C. Effland, David G. Wettlaufer
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Patent number: 5428053Abstract: 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: GrantFiled: September 28, 1993Date of Patent: June 27, 1995Assignee: Hoechst-Roussel Pharmaceuticals Inc.Inventors: Lawrence L. Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
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Patent number: 5405845Abstract: 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: GrantFiled: May 25, 1994Date of Patent: April 11, 1995Assignee: Hoechst-Roussel Pharmaceuticals Inc.Inventors: David G. Wettlaufer, Peter A. Nemoto
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Patent number: 5338739Abstract: 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: GrantFiled: March 10, 1994Date of Patent: August 16, 1994Assignee: Hoechst-Roussel Pharmaceuticals Inc.Inventors: David G. Wettlaufer, Peter A. Nemoto
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Patent number: 5296488Abstract: 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: GrantFiled: November 5, 1992Date of Patent: March 22, 1994Assignee: Hoechst-Roussel Pharmaceuticals Inc.Inventors: Richard C. Effland, David G. Wettlaufer, Joseph T. Klein
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Patent number: 5274116Abstract: 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: GrantFiled: July 30, 1992Date of Patent: December 28, 1993Assignee: Hoechst-Roussel Pharmaceuticals Inc.Inventors: Lawrence Martin, Raymond W. Kosley, Jr., Denise M. Flanagan, Gert U. Kuerzel, Peter A. Nemoto, David G. Wettlaufer
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Patent number: 5260319Abstract: Novel thienobenzoxepins and naphthothiophenes, intermediates and processes for the preparation thereof, and methods of alleviating pain utilizing compounds or compositions thereof are disclosed.Type: GrantFiled: March 19, 1993Date of Patent: November 9, 1993Assignee: Hoechst-Roussel Pharmaceuticals IncorporatedInventors: Richard C. Effland, David G. Wettlaufer
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Patent number: 5256672Abstract: 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: GrantFiled: December 13, 1992Date of Patent: October 26, 1993Assignee: Hoechst-Roussel Pharmaceuticals IncorporatedInventors: David G. Wettlaufer, Gregory M. Shutske, Peter A. Nemoto
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Patent number: 5227388Abstract: 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: GrantFiled: January 30, 1991Date of Patent: July 13, 1993Assignee: Hoechst-Roussel Pharmaceuticals IncorporatedInventors: Richard C. Effland, David G. Wettlaufer
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Patent number: 5180834Abstract: 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: GrantFiled: February 28, 1992Date of Patent: January 19, 1993Assignee: Hoechst-Roussel Pharmaceuticals IncorporatedInventors: David G. Wettlaufer, Gregory M. Shutske, Peter A. Nemoto
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Patent number: 5179099Abstract: 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: GrantFiled: May 24, 1991Date of Patent: January 12, 1993Assignee: Hoechst-Roussel Pharmaceuticals IncorporatedInventors: Richard C. Effland, David G. Wettlaufer, Joseph T. Klein
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Patent number: 5179119Abstract: 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: GrantFiled: July 26, 1991Date of Patent: January 12, 1993Assignee: Hoechst-Roussel Pharmaceuticals IncorporatedInventors: Richard C. Effland, David G. Wettlaufer
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Patent number: 5145965Abstract: 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: GrantFiled: March 11, 1991Date of Patent: September 8, 1992Assignee: Hoechst-Roussel Pharmaceuticals IncorporatedInventors: Richard C. Allen, David G. Wettlaufer