Patents by Inventor Esam Z. Dajani

Esam Z. Dajani 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: 5679375
    Abstract: This invention encompasses methods for inhibiting and/or treating gastric and duodenal ulcers by the administration of purified, high molecular weight sulfated polysaccharide compositions.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 21, 1997
    Assignee: C.V. Therapeuctics
    Inventors: Curtis A. Spilburg, Louis G. Lange, Esam Z. Dajani
  • Patent number: 4459310
    Abstract: This invention encompasses a new use for 16-loweralkyl-16-hydroxy prostaglandins such as misoprostol. This class of prostaglandin has been found useful in lowering cholesterol blood levels in patients with hypercholesterolemia.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: July 10, 1984
    Assignee: G.D. Searle & Co.
    Inventor: Esam Z. Dajani
  • Patent number: 4086227
    Abstract: The present invention, comprehends a method for treating diarrhea comprising administering to an animal in need of anti-diarrheal treatment an effective anti-diarrheal amount of a compound of the formula ##STR1## and acid addition salts thereof wherein Y is alkylene containing 1-4 carbon atoms; R.sub.2 and R.sub.3 together with N is a heterocyclic ring system comprising azamonocyclic ring of the formula ##STR2## wherein Z is phenylhydroxymethylmethylene, phenylhydroxymethylene, phenylcarboxymethylene, phenylcarbalkoxymethylene or azabicycloalkyl or phenyl or hydroxyl substituted azabicycloalkyl containing 6-9 carbon atoms and containing at least 5 atoms in each ring of the azabicycloalkyl or 4-azatricyclo[4.3.1.1.sup.3,8 ]undec-4-yl; Ar.sub.1 and Ar.sub.2 are phenyl, halo-substituted phenyl, (lower alkyl) substituted phenyl, pyridyl, thienyl or furyl, and Ar.sub.
    Type: Grant
    Filed: August 2, 1977
    Date of Patent: April 25, 1978
    Assignee: G. D. Searle & Co.
    Inventors: Gilbert W. Adelstein, Esam Z. Dajani, Chung Hwai Yen
  • Patent number: 4072686
    Abstract: The present invention encompasses compounds of the formula ##STR1## and pharmaceutically acceptable acid addition salts thereof wherein the Alk is straight or branched chain alkylene containing 2-4 carbon atoms; M is alkylene having 1-4 carbon atoms; Ar and Ar' are phenyl, alkyl substituted phenyl wherein the alkyl contains from 1-4 carbon atoms or halo substituted phenyl; Ar" is phenyl, alkyl substituted phenyl wherein the alkyl contains 1-4 carbon atoms, halo substituted phenyl or pyridyl; X is hydrogen, halogen, trifluoromethyl or alkyl having from 1-4 carbon atoms; R is hydrogen alkyl having from 1-7 carbon atoms or an alkanoyl having from 2-5 carbon atoms. These compounds are potent antidiarrheal agents characterized by little, if any, central nervous system activity.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: February 7, 1978
    Assignee: G. D. Searle & Co.
    Inventors: Gilbert W. Adelstein, Esam Z. Dajani, Chung H. Yen
  • Patent number: 4066654
    Abstract: The present invention encompasses compounds of the formula ##STR1## wherein the Alk is straight or branched chain alkylene containing 2-4 carbon atoms; Ar and Ar' are phenyl, Alkyl substituted phenyl wherein the alkyl contains from 1-4 carbon atoms or halo substituted phenyl; Ar" is phenyl, alkyl substituted phenyl wherein the alkyl contains 1-4 carbon atoms, halo substituted phenyl or pyridyl; X is hydrogen, halogen, trifluoromethyl or alkyl having from 1-4 carbon atoms; R is hydrogen, alkyl having from 1-7 carbon atoms, alkenyl having 3-7 carbon atoms, Ar" as herein before defined, or a cation selected from the group consisting of sodium, potassium, ammonium or calcium/2. Compounds of the present invention are potent antidiarrheal agents with little, if any, central nervous system activity.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: January 3, 1978
    Assignee: G. D. Searle & Co.
    Inventors: Gilbert W. Adelstein, Esam Z. Dajani, Chung Hwai Yen
  • Patent number: 4057549
    Abstract: The present invention comprehends a method for treating diarrhea comprising administering to an animal in need of anti-diarrheal treatment an effective antidiarrheal amount of a compound of the formula ##STR1## and acid addition salts thereof wherein Y is alkylene containing 1-4 carbon atoms; R.sub.2 and R.sub.3 together with N is a heterocyclic ring system comprising azamonocyclic ring of the forumula ##STR2## wherein Z is phenylhydroxymethylmethylene, phenylhydroxymethylene, phenylcarboxymethylene, phenylcarbalkoxymethylene or azabicycloalkyl or phenyl or hydroxyl substituted azabicycloalkyl containing 6-9 carbon atoms and containing at least 5 atoms in each ring of azabicycloalkyl or 4-azatricyclo[4.3.1.1.sup.3,8 ]undec-4-yl; Ar.sub.1 and Ar.sub.2 are phenyl, halo-substituted phenyl, (lower alkyl) substituted phenyl, pyridyl, thienyl or furyl, and Ar.sub.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: November 8, 1977
    Assignee: G. D. Searle & Co.
    Inventors: Gilbert W. Adelstein, Esam Z. Dajani, Chung Hwai Yen
  • Patent number: 4009284
    Abstract: Thioureas of the general structure Ary1NHC(S)-NR.sup.1 R.sup.2 are useful as antidiarrheal, antimotility or antisecretory agents. Particularly useful are those wherein Aryl is 2-methylphenyl and NR.sup.1 R.sup.2 is NHCH.sub.2 CH.sub.2 OH.
    Type: Grant
    Filed: December 3, 1975
    Date of Patent: February 22, 1977
    Assignee: Rohm and Haas Company
    Inventors: Peter L. De Benneville, Jack N. Moss, Esam Z. Dajani
  • Patent number: 3998832
    Abstract: The present invention comprehends a method for treating diarrhea comprising administering to an animal in need of anti-diarrheal treatment an effective antidiarrheal amount of a compound of the formula ##STR1## AND ACID ADDITION SALTS THEREOF WHEREIN Y is alkylene containing 1-4 carbon atoms; R.sub.2 and R.sub.3 together with N is a heterocyclic ring system comprising azamonocyclic ring of the formula ##STR2## wherein Z is phenylhydroxymethylmethylene, phenylhydroxymethylene, phenylcarboxymethylene, phenylcarbalkoxymethylene or azabicycloalkyl or phenyl or hydroxyl substituted azabicycloalkyl containing 6-9 carbon atoms and containing at least 5 atoms in each ring of the azabicycloalkyl or 4-azatricyclo[4.3.1.1.sup.3,8 ]undec-4-yl; Ar.sub.1 and Ar.sub.2 are phenyl, halo-substituted phenyl, (lower alkyl) substituted phenyl, pyridyl, thienyl or furyl, and Ar.sub.
    Type: Grant
    Filed: April 16, 1975
    Date of Patent: December 21, 1976
    Assignee: G. D. Searle & Co.
    Inventors: Gilbert W. Adelstein, Esam Z. Dajani, Chung Hwai Yen
  • Patent number: 3996214
    Abstract: This invention encompasses novel 5-[1,1-diphenyl-4-(cyclic amino)but-2-trans-en-1-yl]-2-alkyl-1,3,4-oxadiazoles and intermediates thereto. These compounds are useful anti-diarrheal agents.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: December 7, 1976
    Assignee: G. D. Searle & Co.
    Inventors: Esam Z. Dajani, Chung H. Yen
  • Patent number: 3950537
    Abstract: Thioureas of the general structure ArylNHC(S)-NR.sup.1 R.sup.2 are useful as antidiarrheal, antimotility or antisecretory agents. Particularly useful are those wherein Aryl is 2-methylphenyl and NR.sup.1 R.sup.2 is NHCH.sub.2 CH.sub.2 OH.
    Type: Grant
    Filed: February 26, 1975
    Date of Patent: April 13, 1976
    Assignee: Rohm and Haas Company
    Inventors: Peter L. De Benneville, Jack N. Moss, Esam Z. Dajani