Patents Examined by Pavanaram K Sripada
  • Patent number: 6084093
    Abstract: The present invention is directed to low molecular weight mimics of superoxide dismutase (SOD) represented by the formula: ##STR1## wherein R, R', R.sub.1, R'.sub.1, R.sub.2, R'.sub.2, R.sub.3, R'.sub.3, R.sub.4, R'.sub.4, R.sub.5, R'.sub.5, R.sub.6, R'.sub.6, R.sub.7, R'.sub.7, R.sub.8, R'.sub.8, R.sub.9, and R'.sub.9 and X, Y, Z and n are as defined herein, useful as therapeutic agents for inflammatory disease states and disorders, ischemic/reperfusion injury, stroke, atherosclerosis, hypertension and all other conditions of oxidant-induced tissue damage or injury.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: July 4, 2000
    Assignee: G. D. Searle & Co.
    Inventors: Dennis P. Riley, Randy H. Weiss, William L. Neuman, Anil S. Modak, Patrick J. Lennon, Karl W. Aston
  • Patent number: 6080855
    Abstract: Compounds of formula (I) or salts thereof: ##STR1## wherein R.sup.1 is hydrogen, methoxy or formamido; R.sup.2 is an acyl group; CO.sub.2 R.sup.3 is a carboxy group or a carboxylate anion, or R.sup.3 is a carboxy protecting group, pharmaceutically acceptable salt-forming group or in vivo hydrolysable ester group; R.sup.4 represents hydrogen or up to four substituents; X is O, S, SO or SO.sub.2 ; Y is O, S, SO or SO.sub.2 ; n is 0 or 1; and m is 1 or 2. The compounds have antibacterial activity. Methods of synthesis of, and pharmaceutical formulations containing, compounds (I) are also described.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: June 27, 2000
    Assignee: Pfizer Inc.
    Inventors: George Burton, Brian Charles Gasson, Stephen Christopher Martin Fell
  • Patent number: 6077952
    Abstract: A compound of formula (II) or a salt: ##STR1##
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: June 20, 2000
    Assignee: Pfizer Inc.
    Inventors: John Hargreaves Bateson, George Burton, Stephen Christopher Martin Fell
  • Patent number: 6077844
    Abstract: This invention discloses compounds, and pharmaceutically acceptable salts thereof, useful in therapeutically and/or prophylactically treating patients with an illness. Such illnesses include cancer, and secondary infections caused by Pneumocystis carinii and Toxoplasmosis gondii in immunocompromised patients. The compounds themselves, methods of making these compounds, and methods of using these compounds are all disclosed.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: June 20, 2000
    Assignee: Duquesne University of the Holy Ghost
    Inventor: Aleem Gangjee
  • Patent number: 6077861
    Abstract: Novel compounds of Formula 1 are useful to treat disorders responsive to openers of the large conductance calcium-activated potassium channels: ##STR1## wherein "Het" is one of a select group of heterocyclic moieties; Z is independently for each occurrence selected from O or S; R.sup.a, R.sup.b and R.sup.c each are independently selected from hydrogen, halogen, OH, CF.sub.3, NO.sub.2, or ##STR2## provided R.sup.c is not hydrogen; and when R.sup.a and R.sup.b are hydrogen, R.sup.c may be a heterocyclic moiety selected from the group consisting of imidazol-1-yl, morpholinomethyl, N-methylimidazol-2-yl, and pyridin-2-yl; R.sup.d and R.sup.e each are independently selected from hydrogen, halogen, CF.sub.3, NO.sub.2 or imidazol-1-yl; m, n and p each are independently selected from an integer of O or 1; and R.sup.f and R.sup.g each are independently hydrogen; C.sub.1-4 alkyl; or R.sup.f and R.sup.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: June 20, 2000
    Assignee: Bristol-Myers Squibb Company
    Inventors: Jeffrey L. Romine, Scott W. Martin, Piyasena Hewawasam, Nicholas A. Meanwell, Valentin K. Gribkoff, John E. Starrett, Jr.
  • Patent number: 6072081
    Abstract: An optically active bisoxazoline compound of the formula [I]: ##STR1## wherein R.sub.1 represents alkyl group, cycloalkyl group, aralkyl group, phenyl group which may be substituted or alkoxy group and two geminal alkyl groups may be joined together to form a cyclic structure;R.sub.2 represents alkyl group, cycloalkyl group, aralkyl group, phenyl group which may be substituted;R.sub.3 represents hydrogen atom, (C2-C4)alkyl group or cycloalkyl group; andthe asterisk * represents an asymmetric carbon atom.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: June 6, 2000
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Makoto Itagaki, Gohfu Suzukamo
  • Patent number: 6071925
    Abstract: The present invention relates to compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are each independently hydrogen, lower alkyl, lower alkoxy or halogen;R.sup.3 is phenyl, which is unsubstituted or substituted by lower alkyl, CF.sub.3, lower alkoxy or halogen;R.sup.4 is hydrogen, lower alkyl, lower alkenyl, --C(O)-lower alkyl, --C(O)-phenyl, lower alkyl-C(O)-phenyl, lower alkylene-C(O)O-lower alkyl, lower alkantriyl-di-C(O)O-lower alkyl, hydroxy-lower alkyl, lower alkyl-O-lower alkyl, lower alkyl-CH(OH)CF.sub.3, phenyl or benzyl,R.sup.5 and R.sup.6 are each independently hydrogen, phenyl, lower alkyl or di-lower alkyl or R.sup.5 and R.sup.6 together with the carbon atoms to which they are bound form a phenyl ring, orR.sup.5 and one of R.sup.1 or R.sup.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: June 6, 2000
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Geo Adam, Andrea Cesura, Guido Galley, Fran.cedilla.ois Jenck, Frederick Monsma, Jr., Stephan Rover, Jurgen Wichmann
  • Patent number: 6069244
    Abstract: A phthalocyanine compound possessing an excellent ability to absorb near infrared ray, exhibiting excellent compatibility with resin, and excelling in such special qualities as heat resistance, light resistance, and resistance to weather conditions is provided. This phthalocyanine compound is represented by the following general formula (1) ##STR1## wherein Z.sub.2, Z.sub.3, Z.sub.6, Z.sub.7, Z.sub.10, Z.sub.11, Z.sub.14, and Z.sub.15 are independently SR.sup.1, OR.sup.2, or a fluorine atom, and at least one of them is for SR.sup.1 or OR.sup.2, Z.sub.1, Z.sub.4, Z.sub.5, Z.sub.8, Z.sub.9, Z.sub.12, Z.sub.13, and Z.sub.16 independently stand for NHR.sup.3, SR.sup.1, OR.sup.2, or a fluorine atom and at least one of them is NHR.sup.3, at least one of Z.sub.1 to Z.sub.16 is a fluorine atom or OR.sup.2, R.sup.1, R.sup.2, and R.sup.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: May 30, 2000
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kiyoshi Masuda, Osamu Kaieda
  • Patent number: 6066635
    Abstract: The present invention provides a compound having the structure ##STR1## wherein, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently selected from H, alkyl, aminoalkyl, perfluoroalkyl, orpharmaceutically acceptable salts thereof, useful for treating cancer.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: May 23, 2000
    Assignee: University of California, San Diego
    Inventors: William Fenical, Paul R. Jensen, Xing C. Cheng
  • Patent number: 6066646
    Abstract: A compound of formula (I):P--R.sup.2 --Q (I)where each of P and Q is, independently, a group of formula (B): ##STR1## wherein J is a bidentate group of formula --CH.sub.2 --X--CH.sub.2 -- (wherein X is methylene, sulfur or oxygen), X'C.dbd.CY or X'WC--CYZ (wherein X', W, Y and Z are independently hydrogen, hydroxy, acyloxy, alkoxy, alkylsilyloxy or halogen); R.sup.1 is an optionally substituted phenyl or 5-or 6-membered heterocyclic ring system containing from 1 to 3 heteroatoms individually selected from nitrogen, oxygen and sulfur atoms, and at least one unsaturation (double bond) between adjacent atoms in the ring, said heterocyclic ring being optionally fused to a benzene ring, wherein the substutuents, if present, are selected from halogen atoms, cyano, alkyl, alkenyl, alkynyl, alkoxy, haloalkyl, haloalkenyl, alkylthio and alkyl amino groups, any of which groups contain up to six carbon atoms; R.sup.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: May 23, 2000
    Assignee: Zeneca Limited
    Inventors: Nigel Douglas Bishop, Christopher John Urch, Terence Lewis, Raymond Leo Sunley, Roger Salmon, Christopher Richard Ayles Godfrey
  • Patent number: 6066729
    Abstract: A photothermal conversion material showing high sensitivity to the light of a semiconductor laser having an emission frequency band of 750 nm.about.900 nm with a high photothermal conversion efficiency and a planographic original plate fabricated by using the transducer are provided. This photothermal conversion material comprises a phthalocyanine compound of the following general formula (I) ##STR1## wherein R.sub.1 .about.R.sub.8 each represents alkyl or alkoxyalkyl; X.sub.1 .about.X.sub.8 each represents sulfur or NR.sub.9, where R.sub.9 is hydrogen or alkyl.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: May 23, 2000
    Assignee: Yamamoto Chemicals, Inc
    Inventors: Shigeo Fujita, Jun-ichi Taniguchi, Hiroshi Terao, Yojiro Kumagae
  • Patent number: 6066628
    Abstract: The present disclosure provides novel non-iron metalloporphyrins, especially those porphyrin complexes containing gallium or indium as the metal ion, and antibacterial compositions comprising artificial metalloporphyrins (such as protoporphyrin IX) completed with a metal ion selected from metal ions including, but not limited to, gadolinium, ruthenium copper, gallium, indium and manganese, and methods for inhibiting or killing bacteria and other microorganisms and for treating infections caused by microorganisms using the artificial metalloporphyrin of the present invention.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: May 23, 2000
    Assignee: Emory University
    Inventors: Igor Stojiljkovic, Gordon G. Churchward
  • Patent number: 6063777
    Abstract: The present invention provides an iminochlorin aspartic acid derivative represented by the following formula (I): ##STR1## Wherein Asp represents an aspartic acid residue, or a pharmaceutically acceptable salt thereof. The compound of the present invention is useful as a photosensitizer for photophysico-chemical diagnosis and therapy of cancer, because it has a high accumulability to cancerous cells, reactivity to external energy and a cancerous cell destroying effect which is effective even against cancers developing in deep site, while it is rapidly excreted from normal cells and therefore causes no damage thereto.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: May 16, 2000
    Assignees: Wyeth Lederle Japan, Ltd., Photochemical Co., Ltd.
    Inventors: Muneo Hikida, Masahiko Mori, Isao Sakata, Susumu Nakajima, Hiroyuki Takata
  • Patent number: 6063917
    Abstract: A process for the production of a compound of formula ##STR1## wherein R.sup.a denotes hydrogen or silyl;R.sup.b denotes a group of formula --OR.sup.e, whereinR.sup.e denotes hydrogen or alkyl; andR.sup.c and R.sup.d together denote a bond;in free form or in salt form,which process comprises the step of spitting, in the presence of ozone, the double bond in position 3 of the ring structure of a compound of formula III ##STR2## wherein R.sub.2 and R.sub.3 are the same or different and independently of each other denote hydrogen or an organic group, and X.sup.- denotes the anion of an inorganic or organic acid and optionally silylating the amine group in position 7 of the ring system.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: May 16, 2000
    Assignee: Biochemie Gesellschaft m.b.H.
    Inventors: Gerd Ascher, Johannes Ludescher, Hubert Sturm, Josef Wieser
  • Patent number: 6060598
    Abstract: Fluorescence immunoassays methods are provided which use fluorescent dyes which are free of aggregation and serum binding. Such immunoassay methods are thus, particularly useful for the assay of biological fluids, such as serum, plasma, whole blood and urine.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: May 9, 2000
    Assignee: Hyperion, Inc.
    Inventors: Robert Francis Devlin, Walter Beach Dandliker, Peter Olaf Gustaf Arrhenius
  • Patent number: 6054449
    Abstract: A broad class of photosensitive compounds having enhanced in vivo target tissue selectivity and versatility in photodynamic therapy. Many furocoumarin compounds, such as psoralens, exhibit cytostatic activity when photoactivated but exhibit little in vivo specificity for selectively accumulating in any particular target tissue such as atheromatous plaques. Reactive Oxygen Producing Photosensitizers ("ROPPs") are photoactivatable compounds having an affinity for hyperproliferating cells (such as atheromatous plaque cells), which when photoactivated, produce cytotoxic reaction products. The photoactivity of a ROPP, such as a porphyrin, may be reduced by metalating the porphyrin while the selective affinity of the metalized ROPP for hyperproliferating tissue remains substantially unchanged.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: April 25, 2000
    Assignee: Miravant Pharmaceuticals, Inc.
    Inventors: Byron Robinson, Alan R. Morgan, Hugh L. Narciso, Jr.
  • Patent number: 6054448
    Abstract: Compounds of the formula ##STR1## in which R.sup.1 is Y or Y--C.sub.1-6 alkyl, where Y is carboxy, tetrazolyl, --SO.sub.2 H, --SO.sub.3 H, --OSO.sub.3 H, --CONHOH, or --P(OH)OR', --PO(OH)OR', --OP(OH)OR' or --OPO(OH)OR' where R' is hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkenyl or optionally substituted phenyl-C.sub.1-6 alkyl,and R.sup.2, R.sup.3, R.sup.4, X and Z are as defined in the specification, possess affinity for metabotropic glutamate receptors and are useful in the treatment of disorders of the central nervous system.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: April 25, 2000
    Assignee: Eli Lilly and Company Limited
    Inventors: Barry Peter Clark, John Richard Harris
  • Patent number: 6054580
    Abstract: A robust compound is provided having the formula: ##STR1## wherein Y.sub.1, Y.sub.2, Y.sub.3 and Y.sub.4 are oxidation resistant groups which are the same or different and which form 5- or 6-membered rings with a metal, M, when bound to D. D is a metal complexing donor atom, O or N. Each X is a position for addition of a substituent and, when D is N, each position is (i) not occupied such that a double bond is formed between D and an atom adjacent to D, or (ii) is selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, aryl, alkoxy, phenoxy, halogen, halogenated alkyl, halogenated aryl, halogenated alkenyl, halogenated alkynyl, perhaloalkyl, perhaloaryl, a substituted or unsubstituted cycloalkyl ring, a substituted or unsubstituted cycloalkenyl ring, a substituted or unsubstituted saturated heterocyclic ring, a substituted or unsubstituted unsaturated heterocyclic ring, and at least one X is hydrogen, and when D is O, the position is not occupied.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: April 25, 2000
    Assignee: Carnegie Mellon University
    Inventors: Terrence J. Collins, Scott W. Gordon-Wylie, Colin P. Horwitz
  • Patent number: 6054584
    Abstract: A process for extracting morphine from opium is described. In the process, opium is extracted with a basic alcoholic solution. The basic alcoholic solution is filtered and the alcohol removed from the filtrate to leave a residue. The residue is then extracted with a basic aqueous solution having a pH of at least 11. The basic aqueous solution may be filtered to remove any solid matter remaining after the aqueous extraction step, and then be stirred with a sufficient amount of a salt to avoid emulsion formation. The basic aqueous solution or filtrate is then extracted with benzene or toluene. Next, adjusting the pH of the basic aqueous filtrate to pH 8.5 to 9.5 allows the morphine to precipitate and be recovered.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: April 25, 2000
    Assignee: The Board of Regents of the University and Community College System of Neveda
    Inventors: Junning Ma, Robert C. Corcoran
  • Patent number: 6054604
    Abstract: The present invention relates to new processes for preparing norbenzomorphan, the central intermediate step in the preparation of pharmaceutically useful benzomorphan derivatives of general formula 1 ##STR1## especially (-)-(1R,5S,2"R)-3'-hydroxy-2-(2-methoxypropyl)-5,9,9-trimethyl-6,7-benzomo rphan or [(-)-(2R,6S,2'R)-3-(2-methoxypropyl)-6,11,11-trimethyl-1,2,3,4,5,6-hexahyd ro-2,6-methano-benzo[.alpha.]oxacin-9-ol] (BIII 277).
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: April 25, 2000
    Assignee: Boehringer Ingelheim KG
    Inventors: Matthias Grauert, Herbert Merz, Hanfried Baltes