Patents Represented by Attorney Paul Dupont
  • Patent number: 6953852
    Abstract: Industrially applicable process for preparing 3-amino-1,2,4-benzotriazine 1,4-dioxide.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: October 11, 2005
    Assignee: Sanofi-Aventis
    Inventor: Alain Burgos
  • Patent number: 5846986
    Abstract: Compounds of the formula ##STR1## wherein Azo is alkyltetrazolyl or is chosen from the group consisting of oxadiazolyl, imidazolyl, pyrazolyl, triazolyl, oxazolyl, triazinyl, thiazolyl, isothiazolyl or any of these substituted with a member of the group consisting of alkyl, alkylthio, alkoxy, hydroxy, halo, cyano, nitro, hydroxyalkyl, alkoxyalkyl, alkoxycarbonyl, alkanoyl, fluoroalkyl or the N-oxide of any of the preceding;Y is an alkylene bridge of 3-9 carbon atoms;R.sub.1 and R.sub.2 are each individually chosen from hydrogen, halo, alkyl, alkenyl, amino, alkylthio, hydroxy, hydroxyalkyl, alkoxyalkyl, alkylthioalkyl, alkylsulfinylalkyl, alkylsulfonylalkyl, alkoxy, nitro, carboxy, alkoxycarbonyl, dialkylaminoalkyl, alkylaminoalkyl, aminoalkyl, difluoromethyl, trifluoromethyl or cyano;R.sub.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: December 8, 1998
    Assignee: Sanofi
    Inventors: David J. Aldous, Thomas R. Bailey, Guy Dominic Diana, Theodore J. Nitz, Gee-Hong Kuo
  • Patent number: 5827850
    Abstract: Disclosed are: aqueous parenteral formulations for the treatment of cancer tumors comprising 1,2,4-benzotriazine 1,4-dioxides in a citrate buffer; and method of cancer tumor treatment.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: October 27, 1998
    Assignee: Sanofi Pharmaceuticals, Inc.
    Inventors: Stephen Brown, Edward Baker
  • Patent number: 5665760
    Abstract: Disclosed are reconstituted lyophilized formulations for the treatment of mammalian tumors comprising a thioxanthenone antitumor agent in combination with mannitol or sucrose as a stabilizer in a lactate buffer.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: September 9, 1997
    Assignee: Sanofi Winthrop, Inc.
    Inventors: Stephen Brown, Gurdial Singh Sandhu
  • Patent number: 5639745
    Abstract: Disclosed are compounds, compositions and methods for inhibiting interleukin-1.beta. protease activity. The compounds, bicyclic derivatives of aldehydes and .alpha.-substituted methyl ketones, have the formula (A) set out herein.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: June 17, 1997
    Assignee: Sanofi
    Inventors: Roland E. Dolle, Prasad V. Chaturvedula, Tina Morgan Ross, Stanley J. Schmidt
  • Patent number: 5106844
    Abstract: Novel imidazo[2,1-b][3]benzazepines and pyrimido[2,1-b][3]benzazepines of formula I, pharmaceutical compositions containing them, methods for treating cardiac arrhythmia in mammals utilizing them, and processes for synthesizing them.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: April 21, 1992
    Assignee: Sterling Drug Inc.
    Inventors: Robert E. Johnson, Carl A. Busacca
  • Patent number: 5098901
    Abstract: Novel imidazo[1,2-b][2]benzazepines and pyrimido[1,2-b][2]benzazepines of formula I, pharmaceutical compositions containing them, methods for treating cardiac arrhythmias in mammals utilizing them, and processes for synthesizing them.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: March 24, 1992
    Assignee: Sterling Drug Inc.
    Inventors: Robert E. Johnson, Carl A. Busacca
  • Patent number: 4391811
    Abstract: 2-(NB)-3-R-6-PY-5-Q-3H-imidazo[4,5-b]pyridines (I) and salts, useful as cardiotonics, where NB is amino or dimethylamino, R is lower-alkyl, Q is hydrogen or lower-alkyl, and PY is 4- or 3-pyridinyl or 4- or 3-pyridinyl having one or two lower-alkyl substituents, are prepared by reacting a 2-RNH-3-amino-5-PY-6-Q-pyridine with a di-(lower-alkyl) 2-methylthiopseudourea-1,3-dicarboxylate to produce 2-carbo(lower-alkoxy)amino-3-R-6-PY-5-Q-3H-imidazo[4,5-b] pyridine and hydrolyzing the latter to produce I where NB is amino and by reacting a 2-RNH-3-amino-5-PY-6-Q-pyridine with dichloromethylene-N,N-dimethylammonium chloride to produce I where NB is dimethylamino. Cardiotonic use of I is disclosed and claimed.
    Type: Grant
    Filed: October 2, 1981
    Date of Patent: July 5, 1983
    Assignee: Sterling Drug Inc.
    Inventors: George Y. Lesher, Chester J. Opalka, Jr., Donald F. Page