Patents Examined by John Kight
  • Patent number: 5968908
    Abstract: The invention is novel analogs of 9-cis-retinoic acid which are useful for the treatment and prevention of coronary artery disease and to protect against premature atherosclerosis by increasing HDL levels. The invention includes processes for preparing the novel 9-cis-retinoic acid analogs.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: October 19, 1999
    Assignee: American Cyanamid Company
    Inventors: Joseph William Epstein, Feng Ling Qing, Gary Harold Birnberg, Adam Matthew Gilbert
  • Patent number: 5968985
    Abstract: A process for preparing a pharmaceutical composition which comprises admixing a compound of claim 1 or a pharmaceutically acceptable salt thereof with a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: October 19, 1999
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Atsushi Kuno, Hiroaki Mizuno, Kumi Yamasaki, Yoshikazu Inoue
  • Patent number: 5968910
    Abstract: A composition and method for the prevention or treatment of HIV-1 infection comprising an HIV-1 reverse transcriptase-inhibiting heterocyclyl carb(ox/thio)anilide compound, a second HIV-1 reverse transcriptase inhibitor compound which does not select for the same HIV-1 mutant strain or strains selected for by the heterocyclyl carb(ox/thio)anilide compound, and, optionally, a third HIV reverse transcriptase inhibitor compound.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: October 19, 1999
    Assignee: Jan M. R. Balzarini
    Inventor: Jan Maria Rene Balzarini
  • Patent number: 5968953
    Abstract: New compounds of the formula (A) ##STR1## a process for their preparation and their use in the manufacture of pharmaceutical preparations. The new compounds have both local anaesthetic and analgesic effect.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: October 19, 1999
    Assignee: Astra AB
    Inventors: Anna-Lena Ask, Lars-Inge Olsson, Rune Sandberg
  • Patent number: 5965641
    Abstract: A description is given of a process for stabilising an organic polymer against ozone in the ambient air, which comprises adding to the polymer as stabiliser a monomeric sterically hindered piperidine compound, or an oligomeric or polymeric sterically hindered piperidine compound containing one or several triazine units, or a secondary sterically hindered piperidine compound, the piperidine compound containing in any case at least one unit of formula I ##STR1## wherein G is hydrogen or methyl, and G.sub.1 and G.sub.2 are hydrogen, methyl or, taken together, oxygen.With this process it is possible to make a more accurate prediction of the service time of the polymer and it helps to avoid unnecessarily high dosages of the stabiliser.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: October 12, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Fran.cedilla.ois Gugumus
  • Patent number: 5965751
    Abstract: In a process for the catalytic hydrogenation of 2,5- and 2,3-dihydrofuran with hydrogen to give tetrahydrofuran, use is made of a catalyst in which a metal or a plurality of metals have been deposited by vapor deposition or sputtering on a metal wire mesh or a metal foil as support.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: October 12, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Josef Brocker, Rolf Fischer, Gerd Kaibel, Rolf Pinkos
  • Patent number: 5965734
    Abstract: Processes and intermediates for preparing 2-substituted piperidines such as 2-substituted d-threo piperidines are provided. In preferred embodiments, the processes of the invention comprise the steps of reacting a 2-substituted pyridine with hydrogen in the presence of a catalyst in an alkanoic acid, and adding an alkyl alkanoate to the resulting mixture of threo and erythro 2-piperidine stereoisomers to precipitate alkanoate salts of the erythro stereoisomers preferentially with respect to alkanoate salts of the threo stereoisomers. The erythro salts then are reacted with aqueous base to form the corresponding mixture of erythro amide free bases, which are reacted with a suitable organic acid resolving agent in an alkyl alcohol solvent to form acid salts of the l-erythro stereoisomers preferentially with respect to the d-erythro stereoisomers.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: October 12, 1999
    Assignee: Celgene Corporation
    Inventors: Sowmianarayanan Ramaswamy, Vikram Khetani
  • Patent number: 5965132
    Abstract: The present invention relates generally to methods and compositions for targeting the vasculature of solid tumors using immunological- and growth factor-based reagents. In particular aspects, antibodies carrying diagnostic or therapeutic agents are targeted to the vasculature of solid tumor masses through recognition of tumor vasculature-associated antigens, such as, for example, through endoglin binding, or through the specific induction of endothelial cell surface antigens on vascular endothelial cells in solid tumors.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: October 12, 1999
    Assignee: Board of Regents, The University of Texas System
    Inventors: Philip E. Thorpe, Francis J. Burrows
  • Patent number: 5965492
    Abstract: A triketone compound of the following formula: ##STR1## wherein Y.sup.1 is C.sub.1 to C.sub.4 alkyl, a halogen or a C.sub.1 to C.sub.4 haloalkyl; each of Y.sup.2 and Y.sup.3 is independently C.sub.1 to C.sub.4 alkyl; Y.sup.4 is hydrogen, C.sub.1 to C.sub.4 alkyl or a halogen; n is 0, 1 or 2; p is 0 or 1; each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is independently hydrogen, C.sub.1 to C.sub.4 alkyl or phenyl; or when p is 1, either R.sup.1 or R.sup.2 and either R.sup.3 or R.sup.4 optionally bond to each other to form an intramolecular double bond; and X is oxygen or sulfur. The triketone compound is useful as a herbicide to control a broad range of upland weeds at a low dosage without causing phytotoxicity on corn.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: October 12, 1999
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kazufumi Nakamura, Mitsuru Shibata, Kazuyoshi Koike
  • Patent number: 5962675
    Abstract: Several processes for the chemical synthesis of 2'-O-methoxy purine nucleosides are herein disclosed.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: October 5, 1999
    Assignee: Ribozyme Pharmaceuticals, Inc.
    Inventors: Leonid Beigelman, David Sweedler, Peter Haeberli, Alexander Karpeisky
  • Patent number: 5959164
    Abstract: The use of modified silicon dioxide as a catalyst support in catalytic reactions under hydrothermal conditions is described. The pore structure of the supports may be stabilized against hydrothermal reaction conditions by impregnating the catalyst supports with elements of Group IVB of the Periodic Tube of Elements.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: September 28, 1999
    Assignee: Degussa Huls Aktiengesellschaft
    Inventors: H. G. J. Lansink-Rotgerink, Heike Riedemann, Thomas Tacke, Helmfried Krause, Andreas Freund, Roland Burmeister, Peter Panster
  • Patent number: 5959163
    Abstract: Disclosed is a process for the preparation of 2-butene-1,4-diol comprising contacting a mixture of water and 1,2-epoxy-3-butene with a catalyst comprising a metal halide, zeolite and a non-protic solvent.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: September 28, 1999
    Assignee: The Dow Chemical Company
    Inventors: Thomas J. Remans, Pierre A. Jacobs, Johan Martens, Dominicus A. G. van Oeffelen, Mathias H. G. Steijns
  • Patent number: 5959112
    Abstract: New process for the preparation of ropivacaine hydrochloride monohydrate adapted for production in the plant, which process includes three steps.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: September 28, 1999
    Assignee: Astra Aktiebolag
    Inventor: Peter Jaksch
  • Patent number: 5955600
    Abstract: This invention presents novel methods for recovery of phosphoramidites from the waste products of oligonucleotide synthesis. The methods include reacting a tribromophenoxydichlorophosphorane with a H-phosphonate in the presence of an amine.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: September 21, 1999
    Assignee: Isis Pharmaceuticals, Inc.
    Inventors: Richard H. Griffey, Douglas L. Cole, Vasulinga Ravikumar
  • Patent number: 5955612
    Abstract: A class of sulforhodamine labeling reagents capable of binding with a biomolecular species to produce a conjugate with fluorescent properties. The sulforhodamine labeling reagents have the structure: ##STR1## The group X is selected from an alkyl, an olefin, a monocyclic aliphatic saturated hydrocarbon, an aryl, or nothing at all. The group Y is selected from an amide, a substituted amide, or nothing at all. The group Z is selected from a monocyclic aliphatic hydrocarbon, an aryl, or an alkyl, as defined with respect to group X, a polyethylene glycol chain of the general form (CH.sub.2 CH.sub.2 O).sub.n, or nothing at all. The alkyl or polyethylene glycol chain may further have inert intermediate amide, ether, or disulfide functionalities. The group X, group Y, and group Z cannot all be nothing at all or non-existent. The group R is an electrophilic moiety suitable for conjugation of the fluorescent labeling reagent with a biomolecular species. Also disclosed is a method of making the reagents.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: September 21, 1999
    Assignee: Systemix
    Inventors: Clarence N. Ahlem, Steven M. Torkelson
  • Patent number: 5955608
    Abstract: Novel processes for producing benzothiophenes employing ethylene carbonate or propylene carbonate are provided.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: September 21, 1999
    Assignee: Eli Lilly and Company
    Inventor: Douglas P. Kjell
  • Patent number: 5952316
    Abstract: 2-Amino-1,3-propanediol compounds of the formula (I) ##STR1## wherein R is an optionally substituted straight- or branched carbon chain, an optionally substituted aryl, an optionally substituted cycloalkyl or the like, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and each is a hydrogen, an alkyl, an aralkyl, an acyl or an alkoxycarbonyl, pharmaceutically acceptable salts thereof and immunosuppressants comprising these compounds as active ingredients.The 2-amino-1,3-propanediol compounds of the present invention show immunosuppressive action and are useful for suppressing rejection in organ or bone marrow tranplantation, prevention and treatment of autoimmune diseases or as reagents for use in medicinal and pharmaceutical fields.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: September 14, 1999
    Assignees: Yoshitomi Pharmaceutical Industries, Ltd., Taito Co., Ltd.
    Inventors: Tetsuro Fujita, Shigeo Sasaki, Masahiko Yoneta, Tadashi Mishina, Kunitomo Adachi, Kenji Chiba
  • Patent number: 5952495
    Abstract: A process is provided for preparing 14-hydroxynormorphinones having the formula: ##STR1## which comprises reacting normorphinones having the formula: ##STR2## wherein R is selected from the group consisting of lower alkyl of 1 to 7 carbon atoms, cycloalkyl-lower alkyl with 3-6 ring carbon atoms, benzyl and a substituted-benzyl having the formula: ##STR3## wherein Q and Q.sup.1 are individually selected from the group consisting of hydrogen, lower alkyl, trifluoromethyl, nitro, dialkylamino and cyano;R' is selected from the group consisting of R, 2-(4-morpholinyl)ethyl, benzyloxy carbonyl and R"C(O)-- wherein R" is lower alkyl of 1-4 carbon atoms;with hydrogen peroxide at a temperature of from about 15.degree. C. to about 70.degree. C. in the presence of an acid and an aqueous solvent system to solubilize the reactant for a period of time so as to form the 14-hydroxynormorphinones.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: September 14, 1999
    Assignee: Penick Corporation
    Inventors: Bao-Shan Huang, Yansong Lu, Ben-Yi Ji, Aris P Christodoulou
  • Patent number: 5948788
    Abstract: Normorphine and normorphinone derivatives are provided as compositions of matter.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: September 7, 1999
    Assignee: Penick Corporation
    Inventors: Bao-Shan Huang, Yansong Lu, Ben-Yi Ji, Aris P Christodoulou
  • Patent number: 5948909
    Abstract: The invention relates to a method for the stereoselective preparation of a hetero-bicyclic alcohol enantiomer, characterized in that a substantially pure enantiomer of the general formula ##STR1## is prepared from a compound of the general formula ##STR2## wherein the variable are as defined as in claim 1. The method comprises the following successive reaction steps:(i) reaction with a substantially enantiomerically pure compound of the general formula ##STR3## wherein Z, R.sub.3 and R.sub.4 are defined as in claim 1; (ii) subjection of the compound formed to a deprotection/ring-closure reaction;(iii) optionally deprotection of the hydroxy group of the ring-closed product.The invention further relates to enantiomerically pure intermediates, the preparation of these intermediates and the preparation of a starting compound.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: September 7, 1999
    Assignee: Duphar International Research B.V.
    Inventors: Nicolaas Buizer, Chris G. Kruse, Klara M. Schenk, Belal Shadid