Patents by Inventor Iwan Gunawan

Iwan Gunawan 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).

  • Publication number: 20030171412
    Abstract: This invention provides estrogen receptor modulators of formula 1, having the structure 1
    Type: Application
    Filed: December 11, 2002
    Publication date: September 11, 2003
    Applicant: Wyeth
    Inventors: Michael S. Malamas, Iwan Gunawan, Heather A. Harris, James C. Keith, Leo M. Albert
  • Patent number: 6569873
    Abstract: This invention provides compounds of Formula I having the structure wherein, A, X, Y, Z, W, R1, R2, R3, R4, R5, and R6 are as defined hereinbefore or a pharmaceutically acceptable salt thereof, which are useful in treating or inhibiting metabolic disorders related to insulin resistance or hyperglycemia (typically associated with obesity or glucose intolerance), atherosclerosis, gastrointestinal disorders, neurogenetic inflammation, glaucoma, ocular hypertension and frequent urination; and are particularly useful in the treatment or inhibition of type II diabetes.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: May 27, 2003
    Assignee: Wyeth
    Inventors: Michael Sotirios Malamas, Elwood Eugene Largis, Iwan Gunawan, Zenan Li
  • Publication number: 20030055079
    Abstract: This invention provides compounds of Formula I having the structure 1
    Type: Application
    Filed: August 23, 2002
    Publication date: March 20, 2003
    Applicant: Wyeth
    Inventors: Michael Sotirios Malamas, Elwood Eugene Largis, Iwan Gunawan, Zenan Li
  • Patent number: 6509360
    Abstract: This invention provides compounds of Formula I having the structure wherein: A, B, R1, R2, R3, R4, R5, and R6 are as defined in the specification, or a pharmaceutically acceptable salt thereof, which are useful in treating metabolic disorders related to insulin resistance or hyperglycemia.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: January 21, 2003
    Assignee: Wyeth
    Inventors: Michael S. Malamas, Jay E. Wrobel, Arlene J. Dietrich, Zenan Li, Iwan Gunawan
  • Patent number: 6465501
    Abstract: This invention provides compounds of Formula I having the structure wherein, A, X, Y, Z, W, R1, R2, R3, R4, R5, and R6 are as defined hereinbefore or a pharmaceutically acceptable salt thereof, which are useful in treating or inhibiting metabolic disorders related to insulin resistance or hyperglycemia (typically associated with obesity or glucose intolerance), atherosclerosis, gastrointestinal disorders, neurogenetic inflammation, glaucoma, ocular hypertension and frequent urination; and are particularly useful in the treatment or inhibition of type II diabetes.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: October 15, 2002
    Assignee: Wyeth
    Inventors: Michael Sotirios Malamas, Elwood Eugene Largis, Iwan Gunawan, Zenan Li
  • Publication number: 20020032222
    Abstract: This invention provides compounds of Formula I having the structure 1
    Type: Application
    Filed: July 12, 2001
    Publication date: March 14, 2002
    Applicant: American Home Products Corporation
    Inventors: Michael S. Malamas, Elwood E. Largis, Iwan Gunawan, Zenan Li
  • Patent number: 6214842
    Abstract: This invention provides compounds of Formula I having the structure wherein: R is hydrogen or alkyl of 1-6 carbon atoms; A is R1, R2, R3 are each, independently, hydrogen, alkoxy of 1-6 carbon atoms, thioalkyl of 1-6 carbon atoms, trifluoromethyl, R4 is hydrogen, alkyl of 1-6 carbon atoms, halogen, or alkoxy of 1-6 carbon atoms; R5 is phenyl, naphthyl, thienyl, furyl, wherein R5 may be optionally mono-, di-, or tri-substituted with a sustituent selected from the group consisting of alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, trifluoromethyl, halogen, alkoxycarbonyl of 2-7 carbon atoms, alkylamino of 1-6 carbon atoms, and dialkylamino in which each of the alkyl groups is of 1-6 carbon atoms, nitro, cyano, —CO2H, alkylcarbonyloxy of 2-7 carbon atoms, and alkylcarbonyl of 2-7 carbon atoms; m=1-4; n=1-4; and X=O, S, or a pharmaceutically acceptable salt thereof, which are useful in treating metabolic disorders relat
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: April 10, 2001
    Inventors: Michael S. Malamas, Iwan Gunawan
  • Patent number: 6166069
    Abstract: This invention provides compounds of Formula I having the structure ##STR1## wherein: A, B, R1, R2, R3, R4, R5, and R6 are as defined in the specification,or a pharmaceutically acceptable salt thereof, which are useful in treating metabolic disorders related to insulin resistance or hyperglycemia.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: December 26, 2000
    Assignee: American Home Products Corporation
    Inventors: Michael S. Malamas, Jay E. Wrobel, Arlene J. Dietrich, Zenan Li, Iwan Gunawan
  • Patent number: 5541205
    Abstract: This invention relates to compounds which inhibit lipoxygenase in the metabolism of arachidonic acid and thus inhibits formation of leukotrienes which are implicated in inflammatory processes and bronchoconstriction and inhibits the oxidation of LDL which is implicated in formation of atherosclerotic plaque.The compounds useful in this invention are represented by the formula: ##STR1## wherein: R.sup.2 is hydrogen, halogen or C.sub.1 -C.sub.6 alkyl; Y of O or S;R.sup.5 is hydrogen or methylR.sup.6 is --NH.sub.2, --CH.sub.3 or --OCH.sub.3 ;and R.sup.1 is ##STR2## wherein R.sup.7, R.sup.8 and R.sup.10 are independently halogen, trifluoromethyl, alkyl, alkoxy, methanesulfonyl or trifluoromethanesulfonyl; R.sup.9 is hydrogen or methyl; and Z is O or S,or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: July 30, 1996
    Assignee: American Home Products Corporation
    Inventors: Michael S. Malamas, Iwan Gunawan
  • Patent number: 5532256
    Abstract: This invention relates to novel compounds which have demonstrated oral antihyperglycemic activity in diabetic ob/ob and db/db mice, animal models on non-insulin dependent diabetes mellitus (NIDDM ot Type II diabetes). These compounds have the formula: ##STR1## wherein: R.sup.1 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.8 cycloalkyl, thienyl, furyl, pyridyl, ##STR2## where R.sup.10 is hydrogen, C.sub.1 -C.sub.6 alkyl, fluorine, chlorine, bromine, iodine, C.sub.1 -C.sub.6 alkyoxy, trifluoroalkyl or trifluoroalkoxy;R.sup.2 is hydrogen or C.sub.1 -C.sub.6 alkyl;X is O or S;n is 0, 1, or 2;A is ##STR3## where R.sup.3 is hydrogen, C.sub.1 -C.sub.6 alkyl, halogen, C.sub.1 -C.sub.6 alkoxy, trifluoroalkyl or trifluoroalkoxy;B is ##STR4## where R.sup.4 is hydrogen, C.sub.1 -C.sub.6 alkyl, allyl, C.sub.6 -C.sub.10 aryl, C.sub.6 -C.sub.10 aryl-(CH.sub.2).sub.1-6 --, fluorine, chlorine, bromine, iodine, trimethylsilyl or C.sub.3 -C.sub.8 cycloalkyl;R.sup.5 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.6 -C.sub.10 aryl, or C.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: July 2, 1996
    Assignee: American Home Products Corporation
    Inventors: Michael S. Malamas, Iwan Gunawan
  • Patent number: 5510360
    Abstract: This invention relates to novel compounds which have demonstrated oral antihyperglycemic activity in diabetic ob/ob and db/db mice, animal models on non-insulin dependent diabetes mellitus (NIDDM ot Type II diabetes). These compounds have the formula: ##STR1## wherein: X os O or S;n is 0, 1, or 2; ##STR2## A is ##STR3## B is Y is O or S;Z is N or CH when Y is O and Z is CH when Y is S;or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: April 23, 1996
    Assignee: American Home Products Corporation
    Inventors: Michael S. Malamas, Iwan Gunawan
  • Patent number: 5480896
    Abstract: This invention relates to novel compounds having antihyperglycemic properties of the formula: ##STR1## where A is ##STR2## wherein:n is 1 or 2;R.sup.1 and R.sup.3 are independently hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 alkoxy, trifluoromethoxy, halogen or trifluoromethyl;R.sup.2 is hydrogen or methyl; andX is oxygen or sulfur or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: January 2, 1996
    Assignee: American Home Products Corporation
    Inventors: Michael S. Malamas, Cynthia L. Palka, Iwan Gunawan
  • Patent number: 5468762
    Abstract: This invention relates to compounds which have oral antihyperglycemic activity of the formula: ##STR1## wherein: R.sup.1 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.8 cycloalkyl, thienyl, furyl, pyridyl, ##STR2## R.sup.2 is hydrogen or C.sub.1 -C.sub.6 alkyl; X os O or S;n is 0, 1, or 2;A is ##STR3## Y is O or S;Z is N or CH when Y is O and Z is CH when Y is S;or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: November 21, 1995
    Assignee: American Home Products Corporation
    Inventors: Michael S. Malamas, Iwan Gunawan
  • Patent number: 5428048
    Abstract: This invention relates to compounds which inhibit lipoxygenase in the metabolism of arachidonic acid and thus inhibits formation of leukotrienes which are implicated in inflammatory processes and bronchoconstriction and inhibits the oxidation of LDL which is implicated in formation of atherosclerotic plaque.The compounds useful in this invention are represented by the formula: ##STR1## wherein: R.sup.2 is hydrogen, halogen or C.sub.1 -C.sub.6 alkyl; Y of O or S; R.sup.5 is hydrogen or methyl R.sup.6 is --NH.sub.2, --CH.sub.3 or --OCH.sub.3 ;and R.sup.1 is ##STR2## wherein R.sup.7, R.sup.8 and R.sup.10 are independently halogen, trifluoromethyl, alkyl, alkoxy, methanesulfonyl or trifiuoromethanesulfonyl; R.sup.9 is hydrogen or methyl; and Z is O or S,or a pharmaceutically acceptable salt thereof.Compounds of the above formula where R.sup.1 is not ##STR3## when R.sup.3 is H and R.sup.6 is --NH.sub.2 are novel.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: June 27, 1995
    Assignee: American Home Products Corporation
    Inventors: Michael S. Malamas, Iwan Gunawan
  • Patent number: 5420146
    Abstract: This invention relates to novel 2-[4-(5-substituted-1,2,4-oxadiazol-3-ylmethoxy)benzyl]-1,2,5-oxadiazolidi ne-3,5-diones which have demonstrated antihyperglycemic activity in diabetic (ob/ob and db/db) mice, genetic animal models of non-insulin dependent diabetes mellitus (NIDDM or Type II diabetes). These compounds are represented by Formula I below: ##STR1## wherein R.sup.1 is C.sub.6 -C.sub.10 aryl, optionally substituted by one to three substituents independently selected from C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, fluorine, chlorine, bromine, iodine, C.sub.1 -C.sub.3 trifluoroalkyl or C.sub.1 -C.sub.3 trifluoroalkoxy; andR.sup.2 is selected from the group consisting of hydrogen, C.sub.1 -C.sub.6 alkyl, fluorine, chlorine, bromine, iodine, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.3 trifluoroalkyl, and C.sub.1 -C.sub.3 trifluoroalkoxy,or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: May 30, 1995
    Assignee: American Home Products Corporation
    Inventors: Michael S. Malamas, Cynthia L. Palka, Iwan Gunawan