At Least One Of The Benzene Rings Is Part Of A Naphthalene Ring System Patents (Class 562/49)
  • Tetrahydronaphthalene compounds
    Patent number: 8436205
    Abstract: The invention relates to compounds of Formula (I) wherein R1, R2, R3, R4, R5, m and n are as defined in the description, and to pharmaceutically acceptable salts of such compounds. These compounds are useful as calcium channel blockers.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: May 7, 2013
    Assignee: Actelion Pharmaceuticals Ltd.
    Inventors: Kurt Hilpert, Francis Hubler, Dorte Renneberg
  • Compounds related to assays
    Patent number: 8420402
    Abstract: The present invention is generally directed to thiol quantitation assays, methods of performing the assays, and compounds used in the assays. It is more specifically directed to assays that include one or more disulfides and related molecules and methods. The disulfides contain a FRET pair.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: April 16, 2013
    Assignee: AnaSpec Incorporated
    Inventors: Jianjun He, Anita Hong, Qingheng Wang, Raman Khosrow Afshar, Ming Zhu, Vera Rakhmanova
  • Tetrahydro-1,8-dioxa-4a-aza-naphthalenes in coating applications
    Patent number: 7812173
    Abstract: The present disclosure relates to the preparation and use of tetrahydro-1,8-dioxa-4a-aza-naphthalenes in low VOC coatings.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: October 12, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin
  • Retroviral protease inhibitors
    Patent number: 5703076
    Abstract: Urea-containing hydroxyethylamine compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: December 30, 1997
    Assignee: G. D. Searle & Co.
    Inventors: John J. Talley, Daniel P. Getman, Ko-Chung Lin, Gary A. DeCrescenzo, Donald J. Rogier, Jr., John N. Freskos
  • Preparation of J-acid urea
    Patent number: 5144064
    Abstract: J-Acid urea of the formula ##STR1## is prepared by reacting 7-amino-4-hydroxynaphthalene-2-sulfonic acid (J-acid) with urea at from 100.degree. to 140.degree. C. under a pressure ranging from atmospheric pressure to 10 bar in an inert solvent to a partial extent, precipitating unconverted J-acid in an acidic medium and separating it off, and, if desired, isolating J-acid urea from the resulting neutralized solution by salting out.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: September 1, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Erwin Hahn, Udo Mayer, Friedrich-Wilhelm Raulfs, Ulrike Schloesser
  • Water-soluble, monoazo dyes containing a ureido group and two sulfonyl fiber-reactive groups
    Patent number: 4855411
    Abstract: This invention is directed to new water-soluble, monoazo dyes having the following general formula: ##STR1## in which: X and Y are independently selected from the group consisting of: ##STR2## R, R.sub.1, R.sub.2 are independently selected from H, lower alkyl of one to four carbons and sulfonated lower alkyl;A is a phenyl or napthyl radical optionally substituted with halogen, hydroxy, lower alkyl, lower alkoxy, carboxylic acid or sulfonic acid;W is a phenyl or naphthyl radical optionally substituted by carboxylic acid, sulfonic acid, amino, amido, lower alkyl, lower alkoxy, hydroxy or halogen groups;Z is a phenyl radical optionally substituted with halogen, lower alkoxy or lower alkyl groups; andcopper, chromium, cobalt and nickel metallized complexes of said dyestuffs.The dyes of this invention on cellulose textiles have high tinctorial strength, purity of shade, light and wash fastness particularly chlorine wash fastness.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: August 8, 1989
    Assignees: Hugh C. Crall, Hoechst Celanese Corp.
    Inventors: Glenn A. Thompson, Anthony J. Corso, Hans H. Steuernagel