Patents Examined by Catherine S. Kilby
  • Patent number: 5322947
    Abstract: Crude N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)alkanediamine represented by the formula: ##STR1## wherein n is an integer of 2 to 10, is purified by crystallization from a ketone solvent of 3 to 9 carbon atoms. The purified product thus obtained has a purity of 98% by weight or more, a 2,2,6,6-tetramethyl-4-piperidone content of 150 ppm or less, and an initial APHA value of 30 or less. The purified product is also inhibited from discoloration with the passage of time.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: June 21, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shinya Tanaka, Manji Sasaki, Shinichi Yachigo, Hiroki Yamamoto, Eiiti Yoneyama
  • Patent number: 5321143
    Abstract: A ruthenium catalyzed method to synthesize cyclic sulfate compounds from the corresponding cyclic sulfites, and the cyclic sulfate reaction products obtained by this method. These cyclic sulfates further react with selected nucleophiles to give various substituted products. The method is an efficient means for the synthesis of chiral building blocks from tartaric acid enantiomers in high yields using an overall two-stage, one-pot reaction procedure. The chiral compounds can be transformed by nucleophilic reactions into chiral building blocks useful for the synthesis of natural biologically active products, such as antibiotics and pheromones.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: June 14, 1994
    Assignee: Massachusetts Institute of Technology
    Inventors: K. Barry Sharpless, Yun Gao
  • Patent number: 5318984
    Abstract: Disclosed are compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are selected independently from H, C.sub.1 -C.sub.8 unbranched alkyl, C.sub.3 -C.sub.8 branched alkyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.4 -C.sub.10 cycloalkylalkyl, C.sub.7 -C.sub.14 araalkyl, 2-, 3- or 4-pyridinyl, 2-thienyl, 2-furanyl, phenyl optionally substituted with 1 to 3 groups selected from F, Cl, Br, OH, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.8 branched alkyl, CH.sub.3 S(O).sub.r, NO.sub.2, CF.sub.3, or NR.sup.7 R.sup.8 ; or ##STR2## where L is O, O(CH.sub.2).sub.m+1 O, or (CH.sub.2).sub.m where m is 0-4; R.sup.3 is H, C.sub.1 -C.sub.6 alkyl, allyl, benzyl, or phenyl optionally substituted with F, Cl, CH.sub.3, CH.sub.3 O, or CF.sub.3 ;R.sup.4 is straight chain C.sub.1 -C.sub.8 alkyl optionally substituted with F; C.sub.3 -C.sub.8 branched alkyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.4 -C.sub.10 cycloalkylalkyl, C.sub.7 -C.sub.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: June 7, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Jeffrey T. Billheimer, Peter J. Gillies, C. Anne Higley, Thomas P. Maduskuie, Jr., Ruth R. Wexler
  • Patent number: 5318978
    Abstract: Pharmaceutically useful nitrogen containing cyclic oxime and amine substituted compounds of the formulas I to XVI are disclosed (See specification for definitions of the substituents). Specifically, the compounds are 1-azabicyclo [3.2.1] oximes, 1-azabicyclo [3.3.1] oximes, 1-aza-4-oxobicyclo [3.3.1] oximes, 1-aza-4-oxobicyclo [3.2.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: June 7, 1994
    Assignee: Warner-Lambert Company
    Inventors: David J. Lauffer, Haile Tecle
  • Patent number: 5316555
    Abstract: A porous matrix of lithium aluminate particles for molten alkali metal carbonates electrolytes having about 5 to about 50 volume percent, based upon the volume of the solids, of electrically non-conductive, active electrolyte compatible fibers having an average diameter of about 1 to about 50 microns and an average length greater than about 5 times the average diameter. Such matrices reduce matrix cracking upon loading with molten carbonates active electrolyte and provide high surface area over long term fuel cell operation.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: May 31, 1994
    Assignee: Institute of Gas Technology
    Inventors: Estela T. Ong, Kenneth E. Hrdina
  • Patent number: 5314907
    Abstract: The invention relates to the derivatives of general formula (I): ##STR1## in which: Z represents an oxygen atom or a sulfur atom,R.sub.1 represents a hydrogen atom or an alkyl group,R.sub.2 represents a hydrogen atom or an alkyl group,1.ltoreq.n.ltoreq.6,R.sub.3 represents a nitrile group, an optionally substituted amino group or any one of the groups described in the description andmedicinal products containing the same.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: May 24, 1994
    Assignee: Adir et Compagnie
    Inventors: Gerald Guillaumet, Beatrice Guardiola
  • Patent number: 5314894
    Abstract: (S)-(+)-Hydroxychloroquine substantially free of (R)-(-)-hydroxychloroquine, or a pharmaceutically acceptable acid-addition salt thereof and a method of use thereof and a composition containing it for the treatment of malaria, lupus erythematosus or rheumatoid arthritis.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: May 24, 1994
    Assignee: Sterling Winthrop Inc.
    Inventors: Vera J. Stecher, William F. Michne
  • Patent number: 5308863
    Abstract: Thieno[2,3-b]thiopyran-2-sulfonamides and ring homologs with a hydrophilic substituted-alkyl group adjacent to the thiopyran sulfur are carbonic anhydrase inhibitors topically effective in lowering intraocular pressure.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: May 3, 1994
    Assignee: Merck & Co., Inc.
    Inventors: John J. Baldwin, Gerald S. Ponticello, Charles N. Habecker, Harold G. Selnick
  • Patent number: 5292900
    Abstract: The present invention provides compounds useful as intermediates for the preparation of 5-lipoxygenase inhibiting compounds. The intermediates of this invention have the structure ##STR1## wherein R.sup.1 is an O-protecting group selected from the group consisting of ##STR2## In the above, X is oxygen or sulfur.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: March 8, 1994
    Assignee: Abbott Laboratories
    Inventors: Anwer Basha, Dee W. Brooks
  • Patent number: 5288730
    Abstract: Compounds of formula (I), and salts and prodrugs thereof: ##STR1## wherein Q is the residue of an optionally substituted azabicyclic ring system;X represents oxa or thia;Y represents H or hydroxy;R.sup.1 represents phenyl or thienyl, either of which groups may be optionally substituted by halo, trifluoromethyl or C.sub.1-3 alkoxy, or C.sub.5-7 cycloalkyl;R.sup.2 represents benzyl which may be substituted in the benzyl ring by halo, trifluoromethyl or C.sub.1-3 alkoxy, or C.sub.5-7 cycloalkyl; andR.sup.3, R.sup.4 and R.sup.5 independently represent H, C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, halo, cyano, nitro, trifluoromethyl, trimethylsilyl, --OR.sup.a, SCH.sub.3, SOCH.sub.3, S0.sub.2 CH.sub.3, --NR.sup.a R.sup.b, --NR.sup.a COR.sup.b, --NR.sup.a C0.sub.2 R.sup.b, --C0.sub.2 R.sup.a or --CONR.sup.a R.sup.b ; andR.sup.a and R.sup.b independently represent H, C.sub.1-6 alkyl, phenyl or trifluoromethyl, are tachykinin receptor antagonists. They and compositions thereof are useful in therapy.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: February 22, 1994
    Assignee: Merck Sharp & Dohme Limited
    Inventors: Raymond Baker, Christopher J. Swain, Martin R. Teall, Brian J. Williams
  • Patent number: 5273958
    Abstract: The invention relates to novel substituted triazolinones of the general formula (I) ##STR1## in which R.sup.1 represents alkyl or cycloalkyl,R.sup.2 represents cycloalkyl which is optionally substituted by aryl, arylalkyl, arylalkenyl or arylalkinyl, or represents a radical of the formula ##STR2## X represents oxygen or sulphur and Y represents oxygen or sulphur, whereR.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 represent hydrogen or alkyl,R.sup.9 represents in each case optionally substituted cycloalkyl, aryl or heteroaryl andn represents a number 0, 1, 2 or 3,but with the exception of those compounds in which, simultaneously, R.sup.1 represents a methyl radical, X represents oxygen, Y represents oxygen and R.sup.2 represents a radical of the formula ##STR3## a plurality of processes and novel intermediates for their preparation, and their use as herbicides.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: December 28, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dietmar Kuhnt, Klaus-Helmut Muller, Kurt Findeisen, Klaus Konig, Klaus Lurssen, Hans-Joachim Santel, Robert R. Schmidt
  • Patent number: 5272150
    Abstract: Hydroxyalkylfuranyl derivatives, the pharmaceutically acceptable acid addition salts and stereochemically isomeric forms thereof having antiallergic properties, compositions containing the same and methods of treating warm-blooded animals suffering from allergic diseases.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: December 21, 1993
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Frans E. Janssens, Gaston S. M. Diels, Joseph E. Leenaerts
  • Patent number: 5272272
    Abstract: The present invention relates to novel sweetening agents. These sweetening agents have the general formula ##STR1## in which R is a 5,6,7,8-tetrahydro-1-naphthoyl or 1-naphthoyl radical, R' is a 2-cyanopyrid-5-yl radical and n is equal to 2. These novel sweetening agents are characterized by an extremely high sweetening potency and a very high stability compatible with all the conditions of industrial use.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: December 21, 1993
    Inventors: Claude Nofre, Jean-Marie Tinti
  • Patent number: 5269967
    Abstract: A process to mitigate or "knockdown" a hydroscopic chemical aerosol cloud released to atmosphere from a pressurized vessel by utilizing a pressurized gas and water spray to provide water droplets having a mean volume diameter (MVD) in a median range between 150-350 microns. The pressurized water spray is directed onto the chemical aerosol cloud at a volume rate of at least five parts of water to one part of the hydroscopic chemical to obtain a maximum fallout rate within a minimal travel range.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: December 14, 1993
    Inventor: Robert F. Achgill
  • Patent number: 5268374
    Abstract: The present invention relates to renin inhibiting compounds of the formula: ##STR1##
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: December 7, 1993
    Assignee: Abbott Laboratories
    Inventors: Anthony K. L. Fung, William R. Baker, Yoek-Lin Armiger, Saul H. Rosenberg, Biswanath De, Jacob J. Plattner, Steven A. Boyd, Dale J. Kempf, Hing L. Sham, Hollis D. Kleinert, Robert A. Mantei
  • Patent number: 5268351
    Abstract: N-Heterocyclomethylspiroheterocycles of the general formula I ##STR1## where A is a radical II, III or IV ##STR2## R.sup.2 is CH.sub.3, OH or OCH.sub.3, n is from 0 to 3,R.sup.3 is hydroxyl, acyloxy, alkoxy, unsubstituted or substituted benzoyloxy, unsubstituted or substituted benzyloxy, unsubstituted or substituted alkyl or unsubstituted or substituted alkenyl, unsubstituted or substituted aryl,X is oxygen, sulfur or methylene,Y is hydrogen or hydroxyl, andR.sup.1 is hydrogen, alkyl or unsubstituted or substituted cyclohexyl or unsubstituted or substituted phenyl, their addition salts with acids, and fungicides containing these compounds.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: December 7, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Zipplies, Eberhard Ammermann, Gisela Lorenz
  • Patent number: 5250545
    Abstract: Sugar lactams such as N-(3-phenylpropyl)-1-deoxynojirimycin, 1-deoxynojirimycin, D-glucaro-.delta.-lactam, 6-O-triphenylmethyl-D-gluco-.delta.-lactam, etc., and new derivatives thereof which inhibit metastasis of cancer cells.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: October 5, 1993
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Tsutomu Tsuruoka, Satoru Nakabayashi, Harumi Fukuyasu, Yuuko Ishii, Takashi Tsuruoka, Haruo Yamamoto, Shigeharu Inouye, Shinichi Kondo
  • Patent number: 5247088
    Abstract: This invention relates to a novel process for the continuous preparation of perylenetetracarboxylic diimides by fusion of a naphthalimide in a mixture of an alkali metal hydroxide and, optionally, an alkali metal carboxylate to form an initial leuko condensation product that is subsequently oxidized in an aqueous medium to form the perylenetetracarboxylic diimide.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: September 21, 1993
    Assignee: Miles Inc.
    Inventor: Thomas R. Flatt
  • Patent number: 5246961
    Abstract: The present invention relates, by way of novel industrial products, to the .beta.-D-phenylthioxyloside compounds of the formula ##STR1## in which: X represents a sulfur atom or an oxygen atom;R.sub.1, R.sub.2 and R.sub.3, which are identical or different, each represent a hydrogen atom, a nitro group, a cyano group, a group --CO--R (in which R represents a C.sub.1 -C.sub.4 alkyl group or a trifluoromethyl group), an amino group, an acetamido group (NHCOCH.sub.3), a C.sub.1 -C.sub.4 alkoxy group, a trifluoromethyl group or a phenyl group substituted by one or more cyano, nitro or trifluoromethyl groups, it being possible for R.sub.1 and R.sub.2, taken together, to form, with the phenyl group to which they are bonded, a .beta.-naphthalenyl group which is unsubstituted or substituted by one or more cyano, nitro or trifluoromethyl groups; andY represents the hydrogen atom or an aliphatic acyl group.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: September 21, 1993
    Assignee: Fournier Industrie et Sante
    Inventors: Soth Samreth, Jean Millet, Francois Bellamy
  • Patent number: 5244917
    Abstract: This invention relates to substituted naphthofurans as anti-inflammatory and anti-allergic agents, pharmaceutical compositions containing them, processes for their preparation, and their use as anti-inflammatory and anti-allergic agents. The naphthofurans are of the formula ##STR1## and pharmaceutically acceptable salts thereof wherein: R.sup.1 is CN or COOR.sup.9 ;R.sup.2 and R.sup.8 independently are H, C.sub.1 -C.sub.4 alkyl, COR.sup.9 or COR.sup.10 ;R.sup.3, R.sup.4, R.sup.6 and R.sup.7 are independently H, C.sub.1 -C.sub.4 alkyl, halogen, phenyl, CF.sub.3 or OR.sup.9 ;R.sup.5 is H, C.sub.1 -C.sub.4 alkyl, or COR.sup.9 ; andR.sup.9 and R.sup.10 are independently C.sub.1 -C.sub.4 alkyl, halogen or aryl.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: September 14, 1993
    Assignee: The DuPont Merck Pharmaceutical Company
    Inventors: Joseph J. Petraitis, Donald J. P. Pinto