Patents Represented by Attorney Stephen L. Nesbitt
  • Patent number: 4788186
    Abstract: The present invention refers to new s-triazolo[3,4-a]phthalazine derivatives, to the process for their preparation and to the pharmaceutical compositions containing them.
    Type: Grant
    Filed: October 20, 1987
    Date of Patent: November 29, 1988
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Emilio Occelli, Domenico Barone, Giorgio Tarzia, Adele Giunta
  • Patent number: 4783471
    Abstract: This invention relates to a new class of compounds having important biochemical and pharmacological properties. More particularly, this invention relates to N-aralkyl piperidinemethanol derivatives which are potent and selective inhibitors of the binding of serotonin at the 5HT.sub.2 receptor site, and to the processes for their preparation and use.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: November 8, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Albert A. Carr, Norbert L. Wiech
  • Patent number: 4783461
    Abstract: The present invention is directed to new 3,6-disubstituted-1,2,4-triazolo[3,4-a]phthalazine derivatives of formula I ##STR1## wherein R represents phenyl or substituted phenyl, n is 1 or 2, R.sup.1 is an amino group of formula NR.sup.4 R.sup.5, or an alkoxy of cycloalkoxy group of formula OR.sup.6, and R.sup.2 and R.sup.3 represent hydrogen, halogen, (C.sub.1 -C.sub.4)alkyl or (C.sub.1 -C.sub.4)alkoxy, to the process for their preparation and to the pharmaceutical compositions containing them. The compounds of the present invention are as active as anti-anxiety substances.
    Type: Grant
    Filed: July 11, 1984
    Date of Patent: November 8, 1988
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Emilio Occelli, Giorgio Tarzia
  • Patent number: 4782042
    Abstract: The present invention concerns a new antibiotic substance denominated antibiotic A 40926 mannosyl aglycon and the addition salts thereof, a process for preparing it from antibiotic A 40926 complex or a factor thereof, and its use in the treatment of infectious disease involving microorganisms susceptible to it.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: November 1, 1988
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Enrico Selva, Beth P. Goldstein, Pietro Ferrari, Giovanni Cassani, Francesco Parenti
  • Patent number: 4778926
    Abstract: Gem-dihalo and gem-tetrahalo-1,12-diamino-4,9-diazadodecane derivatives useful as antiproliferative or antitumor agents.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: October 18, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Fritz Gerhart, Pierre Mamont
  • Patent number: 4772363
    Abstract: This invention relates to an improvement in a process for making 2,6-di-tertiarybutyl-4-mercaptophenol and 4,4'-isopropylidenedithio-bis-(2,6-di-tertiarybutylphenol), which is effected by carrying out an electrocatalytic reduction of bis(3,5-di-tertiarybutyl-4-hydroxyphenol)polysulfide at a lead cathode in an acidic electrolyte medium.
    Type: Grant
    Filed: January 14, 1987
    Date of Patent: September 20, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventor: Richard M. Van Effen
  • Patent number: 4769380
    Abstract: Novel 3-carboxy- and 3-carbalkoxy-5-benzoyl-2(1H)-pyridinones as well as the pharmaeutically acceptable salts thereof are cardiotonic agents useful in the treatment of heart failure.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: September 6, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Winton D. Jones, Jr., Richard A. Dage, Richard A. Schnettler
  • Patent number: 4748182
    Abstract: This invention relates to aromatic 2-aminoalkyl derivatives of 1,2-benzoisothiazol-3(2H)one-1,1-dioxides, processes for the preparation of same, and to their use as anxiolytic and antihypertensive agents.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: May 31, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Marcel Hibert, Maurice W. Gittos
  • Patent number: 4743607
    Abstract: Tricyclic imidazolones enhance myocardial contractile force and are useful as cardiotonics in the treatment of heart failure.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: May 10, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Winton D. Jones, George P. Claxton, Richard A. Schnettler, Richard C. Dage
  • Patent number: 4742175
    Abstract: Polymorphically pure terfenadine, 1-(p-tert-butylphenyl)-4-[4'-(.alpha.-hydroxydiphenylmethyl)-1'-piperidiny l]-butanol, is prepared by carefully controlled recrystallization methods.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: May 3, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Timothy G. Fawcett, Christian T. Goralski, David W. Ziettlow
  • Patent number: 4734422
    Abstract: Aroylthiazolones enhance myocardial contractile force and are useful as cardiotonics in the treatment of heart failure.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: March 29, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: J. Martin Grisar, Richard C. Dage, Richard A. Schnettler
  • Patent number: 4732982
    Abstract: This invention relates to alkoxyimino ether derivatives of 5-acyl-2(1H)-pyridinones and to their use as cardiotonic agents useful in treating cardiac failure, and to the process useful in the preparation thereof.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: March 22, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Winton D. Jones, Richard A. Schnettler, Richard C. Dage
  • Patent number: 4732917
    Abstract: The present invention relates to an improved process for preparing sucrose encrusted methylcellulose particles which readily disperse in cold aqueous liquids. These encrusted particles are suitable for use in bulk laxative compositions. In the improved process, hot sucrose syrup is mixed with powdered methylcellulose, dried and milled.
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: March 22, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Dhiren N. Shah, Gregory V. Hammer, Jack Domet
  • Patent number: 4731371
    Abstract: Novel 5-acyl-2-(1H)pyridinones and their use as cardiotonic agents. Typical of the compounds is 5-acetyl-1,2-dihydro-6-methyl-2-oxo-3-pyridinecarbonitrile which is prepared by condensing anionic cyano acetamide with 3-[(dimethylamino)methylenyl]-2,4-pentanedione in an inert organic solvent.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: March 15, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Winton D. Jones, Richard A. Schnettler, Richard C. Dage
  • Patent number: 4730044
    Abstract: Sparsomycin derivatives of the formula ##STR1## wherein X and y are each independently an oxo or an imino group; n is O or the integer 1 or 2; R.sub.1 is a hydrogen or 1 to 4 carbon alkyl group; R.sub.2 is a hydrogen, a 1 to 4 carbon alkyl, a 2 to 5 carbon acyl or a benzoyl group; and R is a 1 to 6 carbon alkyl, 3 to 8 carbon alkenyl, cyanomethyl carboxymethyl, carbalkoxymethyl wherein the alkoxy moiety is a 1 to 4 carbon alkoxy group, nitromethyl, alkylcarbonylmethyl wherein the alkyl moiety is a 1 to 4 carbon alkyl group, pyridyl, furanyl, or furfuryl group or a phenyl or benzyl group optionally substituted by a methylenedioxy or one to two halogen, 1 to 4 carbon alkyl, 1 to 4 carbon alkoxy, 1 to 4 carbon alkylthio, hydroxy, nitro or cyano groups or a pharmaceutically acceptable acid addition salt thereof. Also described are their use as antiprotozoals and antibacterials.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: March 8, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Douglas W. Beight, Gary A. Flynn
  • Patent number: 4730006
    Abstract: This invention relates to amino acid, dipeptide and tripeptide derivatives of 2,6-diamino-3-haloheptanedioic acids, processes for preparing the same, and their use as antibacterial agents.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: March 8, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Ekkehard H. Bohme, Fritz Gerhart, William Higgins
  • Patent number: 4728661
    Abstract: Phenyloxazolones are useful as cardiotonics in the treatment of heart failure and enhance cardiac function.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: March 1, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Richard A. Schnettler, Winton D. Jones, Jr., George P. Claxton
  • Patent number: 4725668
    Abstract: The present invention refers to a process for transforming teicoplanin factor A.sub.2 component 1 into teicoplanin factor A.sub.2 component 3 by means of a chemical reaction which includes the catalytical hydrogenation of the substrate.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: February 16, 1988
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Paolo Strazzolini, Bruno Cavalleri
  • Patent number: 4719237
    Abstract: A method useful for alleviating cardiac arrhythmias such as tachycardias in animals by administering to arrhythmic animals an antiarrhythmic amount of 4,4'-(isopropylidenedithio)bis (2,6-di-t-butylphenol), probucol.
    Type: Grant
    Filed: January 28, 1986
    Date of Patent: January 12, 1988
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventor: Donald McCaughan
  • Patent number: 4716159
    Abstract: The present invention is directed to pyridazino[4,3-c]isoquinolines of Formula I ##STR1## wherein R represents methyl, phenyl or substituted phenyl groups, R.sub.1 represents inter alia amino or substituted amino, alkoxy or cycloalkoxy groups, having pharmacological activity, to process for preparing them and to the pharmaceutical compositions containing them. The compounds of the invention possess anti-anxiety activity.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: December 29, 1987
    Assignee: Gruppo Lepetit, S.p.A.
    Inventor: Emilio Toja