Patents Assigned to Interx Research Corporation
  • Patent number: 4727151
    Abstract: Labile quaternary ammonium salts of the following formula (I) and (II) are provided: ##STR1## wherein N represents a tertiary aliphatic amine; wherein N represents an unsaturated amine; wherein R represents a member selected from the group consisting of a hydrogen atom, a C.sub.1 -C.sub.8 open chain or cyclo alkyl group, a C.sub.1 -C.sub.8 alkoxyalkyl group, a C.sub.1 -C.sub.8 acyloxyalkyl group, a C.sub.1 -C.sub.8 haloalkyl group, a C.sub.1 -C.sub.8 carboxyalkyl group, a C.sub.2 -C.sub.8 alkenylphenyl group, an aryl group, and a substituted aryl group, whose substituents are selected from the group consisting of a halogen atom, an O-lower alkyl (C.sub.1 -C.sub.4) group, an O-acyl group, a nitro group, a carboxyl group, and a carboethoxy group; wherein R.sub.1 which may be the same or different, represents any member defined by R above with the proviso that R.sub.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: February 23, 1988
    Assignee: INTERx Research Corporation
    Inventor: Nicolae S. Bodor
  • Patent number: 4459295
    Abstract: A method and drug form are provided for increasing the oral absorption of glycosidic and related antibiotics such as macrolide, aminoglycoside, lincomycin and anthracycline antibiotics and related chemical species by the oral administration of said glycosidic and related antibiotics in a suitable pharmaceutically accepted excipient to which has been added a hydroxyaryl or hydroxyaralkyl acid or salt thereof. The hydroxyaryl or hydroxyaralkyl acid or salt thereof is present in the drug form in quantities sufficient to be effective in enhancing the rate of oral absorption of glycosidic and related antibiotic.
    Type: Grant
    Filed: June 11, 1982
    Date of Patent: July 10, 1984
    Assignee: INTERx Research Corporation
    Inventors: Takeru Higuchi, Toshiaki Nishihata
  • Patent number: 4412994
    Abstract: Novel prodrug forms of known non-steroidal anti-inflammatory agents are disclosed, said prodrugs having the structural formula ##STR1##
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: November 1, 1983
    Assignee: INTERx Research Corporation
    Inventors: Kenneth B. Sloan, Roy Little
  • Patent number: 4340603
    Abstract: Novel, transient inotropic prodrug forms of the N-(2-phenylethyl)-.omega.-phenylalkylamines, notably of dobutamine, have (i) the structural formula (I): ##STR1## with the proviso that at least one R.sup.1, R.sup.2 or OR.sup.1, when R.sup.7 and/or R.sup.10 is OR.sup.1, must be R.sup.3 COXCH(R.sup.4)-- or R.sup.3 COXCH(R.sup.4)O--, respectively.
    Type: Grant
    Filed: August 13, 1980
    Date of Patent: July 20, 1982
    Assignee: INTERx Research Corporation
    Inventors: Nicholas S. Bodor, Kenneth B. Sloan, Stefano A. Pogany
  • Patent number: 4311706
    Abstract: Novel, transient prodrug forms of dopa and dopamine have (i) the structural formula (I): ##STR1## wherein each R is independently selected from the group consisting of hydrogen, R.sup.3 -CO- and ##STR2## wherein X is O, S or NR.sup.6 ; R.sup.1 is hydrogen or --COOR.sup.8 ; R.sup.2 is hydrogen or OR; R.sup.
    Type: Grant
    Filed: January 22, 1980
    Date of Patent: January 19, 1982
    Assignee: INTERx Research Corporation
    Inventors: Nicholas S. Bodor, Kenneth B. Sloan, Stefano A. Pogany
  • Patent number: 4285947
    Abstract: The invention provides novel aldehyde adducts of triamterene having improved solubility and bioavailability as compared to triamterene. Pharmaceutical compositions containing the novel adducts and having diuretic activity are also described.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: August 25, 1981
    Assignee: INTERx Research Corporation
    Inventors: Takeru Higuchi, Anand C. Burman
  • Patent number: 4275064
    Abstract: Compounds of the formula: ##STR1## useful in treating dermal inflammation in warm-blooded animals are provided.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: June 23, 1981
    Assignee: INTERx Research Corporation
    Inventors: Nicholas S. Bodor, Kenneth B. Sloan
  • Patent number: 4275219
    Abstract: The invention relates to a novel process and novel intermediates useful in the preparation of sympathomimetic amines. The pharmacologically useful final products, which are acyl derivatives of mono- and dihydroxy aromatic amines (e.g., catechol amines) can be prepared in optically active or racemic form by reacting the corresponding mono- or dihydroxy aromatic amine with a reagent capable of forming the N-tert-butoxycarbonyl derivative thereof; reacting the novel intermediate thus obtained with an acyloxymethyl chloride to afford the corresponding novel mono- or diacylated N-protected aromatic amine; and removing the N-protecting group therefrom.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: June 23, 1981
    Assignee: INTERx Research Corporation
    Inventor: Jacob A. Zupan
  • Patent number: 4268441
    Abstract: Transient, orally active thiazolidine type prodrug forms of conventional, natural and synthetic ketosteroidal sex hormones, e.g., of progesterone, testosterone, and the like, are disclosed. The subject compounds can be prepared by known methods, for example, by reacting the corresponding 3-keto or 3,20-diketo steroids with a thiazolidine-forming reagent such as an L-cysteine alkyl ester.
    Type: Grant
    Filed: July 13, 1979
    Date of Patent: May 19, 1981
    Assignee: INTERx Research Corporation
    Inventors: Nicholas S. Bodor, Kenneth B. Sloan
  • Patent number: 4263305
    Abstract: Novel pyridiniumaldoximes having micellar characteristics are useful in the deactivation of organophosphates. Fast and effective detoxification of areas and equipment contaminated with organophosphate pesticides and insecticides results from use of the reagents.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: April 21, 1981
    Assignee: Interx Research Corporation
    Inventors: Joseph Epstein, Nicholas S. Bodor
  • Patent number: 4260769
    Abstract: Novel 5,5-diphenylhydantoins useful as anticonvulsants, antiepileptics and antiarrhythmics have the structural formula: ##STR1## wherein each R is hydrogen or --CH(R.sub.1)--X--P(O)(OH).sub.2, R.sub.1 is hydrogen or C.sub.1 -C.sub.7 straight or branched chain alkyl, and X is O or S, with the proviso that both R's cannot simultaneously be hydrogen.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: April 7, 1981
    Assignee: INTERx Research Corporation
    Inventors: Valentino J. Stella, Kenneth B. Sloan
  • Patent number: 4252790
    Abstract: Gastric ulcer-prone patients are treated by introducing into the stomach thereof an effective amount of a non-toxic, non-absorbable active agent, preferably an anion exchange resin having strong hydrophobic binding tendencies (e.g., a styrene-divinylbenzene copolymer bearing quaternary ammonium functional groups), or a hydrophobic, nonionic polymeric adsorbent, capable of effectively binding free and conjugated bile acids present in the stomach as a result of duodenogastric regurgitation.
    Type: Grant
    Filed: October 23, 1974
    Date of Patent: February 24, 1981
    Assignee: INTERx Research Corporation
    Inventor: Takeru Higuchi
  • Patent number: 4246399
    Abstract: Complexes of the formula:A.X.sub.nwherein A represents doxorubicin; wherein X represents Ca.sup.++, Mg.sup.++, Zn.sup.++, or Ni.sup.++ ; and wherein n represents one or two having enhanced stability are disclosed.The above-described compounds are inorganic complexes of a well-known and regulatory approved compound, doxorubicin, useful in the treatment of a variety of carcinomas. These complexes offer enhanced stability over doxorubicin per se.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: January 20, 1981
    Assignee: INTERx Research Corporation
    Inventors: Takeru Higuchi, Pramod M. Kotwal
  • Patent number: 4239757
    Abstract: Novel 3,2'-spiro(1',3'-thiazolidine) compounds which are transient prodrug forms of known anti-inflammatory corticosteroids are disclosed. The subject compounds can be prepared by known methods, for example, by reacting the corresponding 3-keto steroids with a thiazolidine forming reagent such as an L-cysteine alkyl ester. Preferred compounds are derived from such known anti-inflammatory corticosteroids as cortisone acetate, hydrocortisone, prednisone, prednisolone and the like.
    Type: Grant
    Filed: July 24, 1979
    Date of Patent: December 16, 1980
    Assignee: INTERx Research Corporation
    Inventors: Nicholas S. Bodor, Kenneth B. Sloan
  • Patent number: 4221787
    Abstract: Transient, C-21 and/or C-17 esteramide prodrugs of the anti-inflammatory corticosteroids, prepared by esterification of hydroxy steroids, are disclosed.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: September 9, 1980
    Assignee: INTERx Research Corporation
    Inventors: Nicholas S. Bodor, Kenneth B. Sloan
  • Patent number: 4213978
    Abstract: Transient, topically active thiazolidine type prodrug forms of progesterone are disclosed.
    Type: Grant
    Filed: December 5, 1978
    Date of Patent: July 22, 1980
    Assignee: INTERx Research Corporation
    Inventors: Nicholas S. Bodor, Kenneth B. Sloan
  • Patent number: 4206220
    Abstract: Novel prodrug forms of carboxylic acid, non-steroidal, anti-inflammatory agents are disclosed, having the structural formula ##STR1## wherein ##STR2## represents the acyloxy residue of any non-steroidal anti-inflammatory drug which contains a carboxylic acid function; R.sub.1 and R.sub.2, which can be the same or different, each represents a member selected from the group consisting of C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.8 alkenyl, aryl, aralkyl, C.sub.5 -C.sub.6 cycloalkyl and C.sub.5 -C.sub.6 cycloalkenyl; or R.sub.1 and R.sub.2 are combined so that --NR.sub.1 R.sub.2 together form a member selected from the group consisting of a cycloheteroalkyl radical such as morpholino, 1-pyrrolidinyl, 4-methyl-1-piperazinyl or piperidino and a heteroaryl radical, such as 1-imidazolyl or 1-pyrazolyl; and the nontoxic pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: June 3, 1980
    Assignee: INTERx Research Corporation
    Inventor: Kenneth B. Sloan
  • Patent number: 4204065
    Abstract: Soft quaternary surface active agents having the formula: ##STR1## wherein >N represents a tertiary open chain or cyclic aliphatic amine; wherein >N represents an unsaturated amine; wherein R represents a member selected from the group consisting of a hydrogen atom, a C.sub.1 -C.sub.20 open chain or cyclo alkyl group, a C.sub.1 -C.sub.20 alkoxyalkyl group, a C.sub.1 -C.sub.20 acyloxyalkyl group, a C.sub.1 -C.sub.20 haloalkyl group, a C.sub.1 -C.sub.20 carboxyalkyl group, an aryl group, and a substituted aryl group, whose substituents are selected from the group consisting of a halogen atom, an O--C.sub.1 -C.sub.4 alkyl group, an O--C.sub.1 -C.sub.8 acyl group, a nitro group, a carboxyl group, and a carboethoxy group; wherein R.sub.1 represents a C.sub.9 -C.sub.22 straight or branched alkyl group, a --(CH.sub.2).sub.n -- ##STR2## group, wherein R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each selected from the group consisting of a hydrogen atom, a methyl group or an ethyl group, a C.sub.0 -C.sub.
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: May 20, 1980
    Assignee: Interx Research Corporation
    Inventor: Nicolae S. Bodor
  • Patent number: 4180586
    Abstract: A method for treating circulatory shock in warm-blooded animals via parenteral administration of 3,4-Dipivalyl-.alpha.-[(methylamino)methyl]benzyl alcohol and its nontoxic pharmaceutically acceptable acid addition salts is disclosed.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: December 25, 1979
    Assignee: Interx Research Corporation
    Inventor: Stuart P. Eriksen
  • Patent number: 4178376
    Abstract: Rapid therapeutically effective antimalarial levels of a member selected from the group consisting of 6,8-Dichloro-.alpha.-(dibutyl-amino-methyl-2-(3',4'-dichlorophenyl-4-quino linemethanol, 3-Dibutylamino-1-[2,6-bis(4-trifluoromethylphenyl)-4-pyridyl]propanol and 1,3-Dichloro-6-trifluoromethyl-9-[1-hydroxy-3-(dibutylamino) propyl]-phenanthrene are achieved by dissolving the same in an organic fatty acid of the formula: R-CCOH, wherein R represents a member selected from the group consisting of a saturated aliphatic hydrocarbon group of from seven to twenty carbon atoms and a mono-, di-, tri-, or tetra-unsaturated hydrocarbon group of from seven to twenty carbon atoms, and subsequently administering said acid containing the dissolved compound to a warm-blooded animal (e.g., human) afflicted with malaria.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: December 11, 1979
    Assignee: Interx Research Corporation
    Inventors: Takeru Higuchi, Siegfried Lindenbaum