Patents by Inventor Ibrahim M. Uwaydah

Ibrahim M. Uwaydah 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: 5981524
    Abstract: Optically active or racemic compounds represented by the formula ##STR1## where R.sub.1 is C.sub.1 to C.sub.4 straight chain or branched alkyl; R.sub.2 is selected from the group consisting of H, --OR.sub.1, --SR.sub.1, --NH(R.sub.1), --N(R.sub.4)(R.sub.5), aminocarbonyl, halogen, and --CN, where R.sub.4 and R.sub.5 are independently C.sub.1 to C.sub.6 straight chain or branched alkyl, or taken together form a 3- to 7-membered heterocycloalkyl substituent, such heteroatom selected from the group consisting of oxygen, nitrogen and sulfur, optionally including an additional heteroatom which is selected from the group consisting of nitrogen, oxygen, and sulfur; R.sub.3 is cyclopentyl or: ##STR2## where R' and R" are independently H, .dbd.O, --OH, or --NH.sub.2, with the proviso that R' and R" can be taken together form the following structure as R.sub.3 : ##STR3## where R'" is --OH or --NH.sub.2 ; and with the further proviso that when R.sub.3 is cyclopentyl or norbornyl, then R.sub.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: November 9, 1999
    Assignee: Discovery Therapeutics, Inc.
    Inventors: James V. Peck, Ronald J. Wysocki, Ibrahim M. Uwaydah, Noel J. Cusack
  • Patent number: 5696274
    Abstract: The present invention provides processes which are flexible, cost effective, and commercially viable methods of manufacturing or producing products from 2-hydroxyacetophenone (2-HAP).Of particular interest of the available products are 4-hydroxycoumarin, warfarin-alkali salt, preferably warfarin sodium and warfarin-alkali salt-isopropyl alcohol (2-propanol) complex, more preferably warfarin-sodium-isopropyl alcohol complex.As is known, these compounds are useful as vitamin K dependent anticoagulants in the treatment of humans and animals. In different doses, they are also useful as rodenticide.The inventive process involves contacting 2-HAP, carbonate ester and effective base followed by treatment with an unsaturated ketone and phase transfer catalyst to ultimately yield product.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: December 9, 1997
    Assignee: Hoechst Celanese Corporation
    Inventors: Ibrahim M. Uwaydah, Mohammad Aslam, Charles H. Brown, II, Sharon R. Fitzhenry, Joseph A. McDonough
  • Patent number: 5670501
    Abstract: Optically active or racemic compounds represented by the formula ##STR1## where R.sub.1 is C.sub.1 to C.sub.4 straight chain or branched alkyl; R.sub.2 is selected from the group consisting of H, --OR.sub.1, --SR.sub.1, --NH(R.sub.1), --N(R.sub.4)(R.sub.5), aminocarbonyl, halogen, and --CN, where R.sub.4 and R.sub.5 are independently C.sub.1 to C.sub.6 straight chain or branched alkyl, or taken together form a 3- to 7-membered heterocycloalkyl substituent, such heteroatom selected from the group consisting of oxygen, nitrogen and sulfur, optionally including an additional heteroatom which is selected from the group consisting of nitrogen, oxygen, and sulfur; R.sub.3 is cyclopentyl or: ##STR2## where R' and R" are independently H, .dbd.O, --OH, or --NH.sub.2, with the proviso that R' and R" can be taken together form the following structure as R.sub.3 : ##STR3## where R'" is --OH or --NH.sub.2 ; and with the further proviso that when R.sub.3 is cyclopentyl or norbornyl, then R.sub.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: September 23, 1997
    Assignee: Discovery Therapeutics, Inc.
    Inventors: James V. Peck, Ronald J. Wysocki, Ibrahim M. Uwaydah, Noel J. Cusack
  • Patent number: 5519037
    Abstract: Antiinfluenza A activity was found in compounds of the formula: ##STR1## wherein X is ##STR2## where one of R.sup.1 and R.sup.2 is H and the other is phenylamino and Z is --SCH.sub.3 or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: May 21, 1996
    Assignee: American Home Products Corporation
    Inventors: Kuo-Hom L. Hsu, Daniel M. Teller, Alan R. Davis, Michael D. Lubeck, Harry R. Munson, Jr., Gunnar E. Jagdmann, Ibrahim M. Uwaydah
  • Patent number: 5475012
    Abstract: Antiinfluenza A activity was found in compounds of the formula: ##STR1## wherein: X is 2-phenylethyl, 2-furanylmethyl, or ##STR2## where one of R.sup.1 and R.sup.2 is H and the other is phenylamino; Z is --SCH.sub.3 when X is ##STR3## or ##STR4## when X is 2-phenylethyl or 2-furanylmethyl; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: December 12, 1995
    Assignee: American Home Products Corporation
    Inventors: Kuo-Hom L. Hsu, Daniel M. Teller, Alan R. Davis, Michael D. Lubeck, Harry R. Munson, Jr., Gunnar E. Jagdmann, Ibrahim M. Uwaydah
  • Patent number: 5380734
    Abstract: Antiinfluenza A activity was found in compounds of the formula: ##STR1## wherein: X is 2-phenylethyl, 2-furanylmethyl, or ##STR2## where one of R.sup.1 and R.sup.2 is H and the other is phenylamino; Z is --SCH.sub.3 when X is ##STR3## when X is 2-phenylethyl or 2-furanylmethyl; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: January 10, 1995
    Assignee: American Home Products Corporation
    Inventors: Kuo-Hom L. Hsu, Daniel M. Teller, Alan R. Davis, Michael D. Lubeck, Harry R. Munson, Jr., Gunnar E. Jagdmann, Ibrahim M. Uwaydah
  • Patent number: 5273993
    Abstract: Methods of treating chronic arthritis and osteoporosis which utilize both known and novel compounds which would fall under the general formula:(HO)p--A--[--OS(O).sub.2 NR.sup.1 R.sup.2 ].sub.zwherein A encompasses a wide range of values including but not limited to aryl, loweralkyl, cycloalkyl, and carbohydrates including sucrose and fructose; p is equal to the number of unreacted hydroxy groups contained on the molecule and may be zero; z is the number of --OS(O).sub.2 NR.sup.1 R.sup.2 groups and is always at least one; R.sup.1 and R.sup.2 are selected from hydrogen, loweralkyl, carboxy and the like; a novel process for preparing the compounds is provided wherein an appropriate sulfamic acid aryl ester is reacted with a hydroxy substituted A radical which may or may not contain thereon protected carboxyl, amino or hydroxy substituents, in an aprotic solvent containing a tertiary amine base. Pharmaceutical compositions for the treatment of chronic arthritis and osteoporosis are also provided.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: December 28, 1993
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Young S. Lo, Joseph C. Nolan, William J. Welstead, Jr., David A. Walsh, Dwight A. Shamblee, Ibrahim M. Uwaydah
  • Patent number: 5194446
    Abstract: Methods of treating chronic arthritis and osteoporosis which utilize both known and novel compounds which would fall under the general formula:(HO)p--A--[--OS(O).sub.2 NR.sup.1 R.sup.2 ].sub.zwherein A encompasses a wide range of values including but not limited to aryl, loweralkyl, cycloalkyl, and carbohydrates including sucrose and fructose; p is equal to the number of unreacted hydroxy groups contained on the molecule and may be zero; z is the number of --OS(O).sub.2 NR.sup.1 R.sup.2 groups and is always at least one; R.sup.1 and R.sup.2 are selected from hydrogen, loweralkyl, carboxy and the like; a novel process for preparing the compounds is provided wherein an appropriate sulfamic acid aryl ester is reacted with a hydroxy substituted A radical which may or may not contain thereon protected carboxyl, amino or hydroxy substituents, in an aprotic solvent containing a tertiary amine base. Pharmaceutical compositions for the treatment of chronic arthritis and osteoporosis are also provided.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: March 16, 1993
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Young S. Lo, Joseph C. Nolan, William J. Welstead, Jr., David A. Walsh, Dwight A. Shamblee, Ibrahim M. Uwaydah
  • Patent number: 5061720
    Abstract: Disclosed are novel substituted 4-thiazolidinone derivatives having cyclooxygenase and 5-lipoxygenase inhibiting properties and which are topical antiinflammatory agents for inflammed conditions of the skin having the formula: ##STR1## wherein R is hydrogen or loweralkyl; R.sup.1 is loweralkyl or aryl; X is --(CH.sub.2)-aryl, --O--(CH.sub.2).sub.0-3 -aryl, --C(O)(CH.sub.2).sub.0-3 -aryl, --CH(OH)--(CH.sub.2).sub.0-3 -aryl or 3,4 ##STR2## (to form naphthyl ring); aryl is phenyl, substituted phenyl, or 2,3 or 4 pyridyl; W is oxygen; Q is -(alk.sup.1).sub.0-1 --(O).sub.0-1 --(B).sub.0-1 --(alk.sup.2).sub.0-1 --[C(O)Z].sub.0-1 ; B is ##STR3## Z is OR.sup.3 or NR.sup.4 R.sup.5 where R.sup.3 is hydrogen, loweralkyl, or a pharmaceutically acceptable metal cation, R.sup.4 and R.sup.5 are hydrogen or loweralkyl; alk.sup.1 and alk.sup.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: October 29, 1991
    Assignee: A. H. Robins Company, Inc.
    Inventors: David A. Walsh, Ibrahim M. Uwaydah
  • Patent number: 5025031
    Abstract: Herein disclosed is a method of treating convulsions with a pharmaceutical composition containing a compound of the formula:(HO).sub.p --A--[OSO.sub.2 NR.sup.1 R.sup.2 ].sub.zwhere A is an aryl, arylalkyl, or aryloxyalkyl group and is substituted on 1 or more carbon atoms with a sulfamate group (--OSO.sub.2 NR.sup.1 R.sup.2) wherein R.sup.1 and R.sup.2, same or different, are hydrogen or loweralkyl wherein p is 0 or 1 and is the number of untreated hydroxyl groups and z is 1 or 2 and is the number of --OS(O.sub.2)NR.sup.1 R.sup.2 groups. Aryl is selected from phenyl, substituted phenyl, pyridinyl, naphthyl, quinolinyl, and the like. Phenyl substituents are selected from hydrogen, halo, hydroxy, phenyl, phenoxy, benzoyl, loweralkyl, loweralkoxy, carboxy, amino, loweralkylamino, diloweralkylamino, acetamido, cyano, nitro, loweralkoxycarboyl, aminosulfonyl, imidazolyl, triazolyl, and the like. Novel compounds not previously disclosed are also described.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: June 18, 1991
    Assignee: A. H. Robins Co., Inc.
    Inventors: Young S. Lo, David A. Walsh, Ibrahim M. Uwaydah
  • Patent number: 4898874
    Abstract: 3-Aryl-2,1-benzisoxazole compounds having the formula: ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen or methyl;R.sup.3 and R.sup.4 are hydroxyl, loweralkoxy, amino or --OM wherein M is a pharmaceutically acceptable cation;X is hydrogen, halogen, loweralkyl or nitro;Y is selected from hydrogen, halogen, loweralkyl, loweralkoxy, nitro or trifluoromethyl;n and p are zero or one with the proviso that either n or p must be oneare disclosed, having anti-inflammatory activity and novel intermediates in the preparation thereof.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: February 6, 1990
    Assignee: A. H. Robins Company, Inc.
    Inventors: David A. Walsh, Ibrahim M. Uwaydah