Patents Examined by Robert V. Hines
  • Patent number: 4935449
    Abstract: The importance of polyamines in biological systems is discussed as well as the implications of polyamines in the treatment of various diseases. Novel N-substituted-2,3-butadienyl tri- and tetra-aminoalkanes are disclosed as well as their use inthe treatment of diseases and the pharmaceutical compositions.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: June 19, 1990
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Philippe Bey, David M. Stemerick, Michael L. Edwards, Alan J. Bitonti
  • Patent number: 4933480
    Abstract: A compound of the formula: ##STR1## wherein R is a C.sub.2 -C.sub.3 alkyl group, a C.sub.3 -C.sub.4 alkenyl group, or a C.sub.3 -C.sub.4 alkynyl group, and X is a chlorine or bromine atom, is disclosed. These compounds are useful as intermediates in the production of herbicidal 3-chlorotetrahydroindazoles.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: June 12, 1990
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toru Haga, Eiki Nagano, Ryo Sato, Ryo Yoshida
  • Patent number: 4925879
    Abstract: Compounds of formula I ##STR1## and pharmaceutically acceptable salts thereof; in which R.sub.1 and R.sub.2, which are the same or different, are H or an optionally substituted hydrocarbon group or R.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached form an optionally substituted heterocyclic ring;R.sub.3 is an optionally substituted aromatic hydrocarbon group; andR.sub.4 is a hydrocarbon group containing at least one substituent selected from the group consisting of hydroxy and acylated derivatives thereof, optionally substituted alkoxy groups, optionally substituted cycloalkyloxy groups, optionally substituted alkylenedioxy groups, oxo and groups of formula S(O).sub.p R.sub.5 in which p is 0, 1 or 2 and R.sub.5 is an alkyl group, said hydrocarbon group being optionally substituted by additional substituents,are useful in the treatment of depression.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: May 15, 1990
    Assignee: Boots Company, PLC
    Inventors: John R. Housley, James E. Jeffery, David N. Johnston, Bruce J. Sargent
  • Patent number: 4924028
    Abstract: This invention relates to an improved process for the preparation of polynuclear aromatic polyamines in which the reaction product is prepared by condensing aniline with formaldehyde in the presence of water and acidic catalysts and is worked up by extraction with a hydrophobic solvent. The acid catalyst that accumulates in the aqueous phase during the extraction process is reused.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: May 8, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hartmut Knofel, Michael Brockelt, Marcel Petinaux, Rudolf Uchdorf
  • Patent number: 4922021
    Abstract: The invention is directed to 1-(2,6-Dimethyl-Phenyl-amino)-2-Dimethyl-amino-Propane and the pharmaceutical composition thereof useful for the treatment of cardiac rhythm disorders.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: May 1, 1990
    Assignee: BASF Aktiensellschaft
    Inventors: Zoltan Zubovics, Lajos Toldy, Gyorgy Rabloczky, Andras Varro, Ferene Andrasi, Sandor Elek, Istvan Elekes
  • Patent number: 4919709
    Abstract: The optically active isomer of S(-)-N-(1'methyl-2'-methoxyethyl)-N-chloroacetyl-2,6-dimethylaniline has improved action against problem weeds over the racemic mixture of isomers.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: April 24, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Moser, Christian Vogel
  • Patent number: 4918235
    Abstract: The present invention is directed to a new chemical compound, 1,5-diaminoheptanol-6, which corresponds to the formula ##STR1## The present invention is additionally directed to a process for the preparation of 1,5-diaminoheptanol-6 by reacting L-lysine in its free form and/or in the form of its HCl salt, with acetic acid anhydride in the presence of a tertiary organic amino base and with the addition of a 4-aminopyridine derivative, hydrogenating the resulting 1,5-bisacetaminohepthanone-6 to 1,5-bisacetaminoheptanol-6, forming a salt of 1,5-diaminoheptanol-6 by treating 1,5-bisacetaminoheptanone-6 with a mineral acid and isolating the free amine by treating the 1,5-diaminoheptanol-6 salt of a mineral acid with a strong base.Finally, the present invention is directed to the use of 1,5-diaminoheptanol-6 as at least a portion of the chain lengthening agent for the preparation of polyurethane plastics by the isocyanate polyaddition process.
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: April 17, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Joachim Scholl, Josef Pedain
  • Patent number: 4909826
    Abstract: The invention relates to the use of the fungus Amphobotrys ricini as a mycoherbicide to control texasweed (Caperonia palustris). Amphobotrys ricini has been found to infect and kill texasweed when applied to the plant and is considered effective at all stages of plant development.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: March 20, 1990
    Assignee: Texas A&M University
    Inventor: N. Glenn Whitney
  • Patent number: 4910340
    Abstract: A process of forming N,N-dialkylhydroxylamines (a class of compounds useful as oxygen scavengers in boiler water feed) by contacting an N-alkylhydroxylamine with an alkyl carbonyl compound to form a nitrone in situ or, alternatively, using previously formed alkylnitrone which is subjected to H.sub.2 and a hydrogenation catalyst.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: March 20, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Nelson S. Marans, Stephen G. Harsy, Herbert S. Harris
  • Patent number: 4908479
    Abstract: A process for preparing a 2,2,6,6-tetrahalocyclohexanimine derivative (I) which comprises reacting a 2,2,6,6-tetrahalocyclohexanone with a primary amine or ammonia in the presence of a Lewis acid, a process for preparing a 2,6-dihaloaniline derivative (II) which comprises subjecting the 2,2,6,6-tetrahalocyclohexaneimine derivative (I) to dehydrohalogenation in the presence or absence of a catalyst, and an N-phenyl-2,2,6,6-tetrahalocyclohexaneimine. According to the process of the present invention, the 2,2,6,6-tetrahalocyclohexaneimine derivative (I) can be prepared from inexpensive starting materials in high yield through a few steps. Also, the 2,6-dihaloaniline derivative (II) can be prepared from inexpensive starting materials in high yield and high purity through a few steps. Further, the N-phenyl-2,2,6,6-tetrahalocyclohexaneimine is very useful in the preparation of N-phenyl-2,6-dihaloaniline.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: March 13, 1990
    Assignee: Osaka Yuki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeaki Saeki, Hideo Ishikawa, Tunehei Oki
  • Patent number: 4906776
    Abstract: When making an a amide by hydrolysis of a nitrile in an aqueous medium containing a Raney copper catalyst, the yield of amide can be increased and the yield of impurities can be decreased by including vanadium metal in the catalyst. The vanadium may be present as Raney vanadium often as an alloy in the Raney copper.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: March 6, 1990
    Assignee: Allied Colloids Ltd.
    Inventors: Gerald P. Benn, David Farrar, Seraj A. M. Karolia
  • Patent number: 4906780
    Abstract: Process for the production of optically-active beta-methylcholine from optically active 3-chloro-2-oxy-propyltrimethyl ammonium chloride.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: March 6, 1990
    Assignee: Lonza Ltd.
    Inventor: Robert Voeffray
  • Patent number: 4886914
    Abstract: The present invention relates to a process for the preparation of alpha alkyl amino aldehydes of formula ##STR1## in which R is alkyl or aralkyl possibly substituted, characterized in that N,O-dimethylhydroxylamine is reacted, in a basic medium, on a blocked amine ester of an amino acid of formula ##STR2## and in that the product obtained is reduced with the aid of a hydride such as the double hydride of lithium-aluminum.
    Type: Grant
    Filed: July 30, 1985
    Date of Patent: December 12, 1989
    Assignee: Sanofi
    Inventors: Bertrand Castro, Jean Fehrentz
  • Patent number: 4876282
    Abstract: The present invention provides 1-phenyl-(naphthalenyl)alkylamines which are selective inhibitors of serotonin uptake.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: October 24, 1989
    Assignee: Eli Lilly and Company
    Inventors: David W. Robertson, David T. Wong
  • Patent number: 4868209
    Abstract: Compounds of formula I wherein R.sup.1 and R.sup.2 are haloalkyl or halo, X is O, S, S(O), SO.sub.2 or NR.sub.4 where R.sub.4 is H or alkyl, R.sup.3 is alkyl and n is 1 to 4, and compositions comprising them, useful as insecticides.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: September 19, 1989
    Assignee: Imperial Chemical Industries PLC
    Inventor: Nazim Punja
  • Patent number: 4861801
    Abstract: The present invention relates to a process for the treatment of depression comprising administering to a human in need thereof an antidepressant amount of a compound selected from 1-(2-fluorophenyl)-2-tertiobutylamino-1-ethanol and an addition salt thereof.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: August 29, 1989
    Assignee: Laboratoire L. Lafon
    Inventor: Louis Lafon
  • Patent number: 4859707
    Abstract: This invention relates to sulfur-substituted phenylacetamides of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 may be the same or different and are H or CH.sub.3 ; R.sub.4 is SR.sub.5, ##STR2## R.sub.5 and R.sub.6 may be the same or different and are lower alkyl containing 1-4 carbon atoms and R.sub.5 and R.sub.6 may be taken together with S to form a 5-7 member ring; and X.sup.- is a pharmaceutically acceptable anion, which exhibit arrhythmia activity.
    Type: Grant
    Filed: August 23, 1983
    Date of Patent: August 22, 1989
    Assignee: Key Pharmaceuticals, Inc.
    Inventors: Thorsteinn Loftsson, Nicholas Bodor
  • Patent number: 4855501
    Abstract: Disclosed is a process for the preparation of monomethylhydrazine which comprises reacting hydrazine monohydrochloride with methanol in the presence of hydrazine dihydrochloride or methyl chloride and recovering free monomethylhydrazine from the formed monomethylhydrazine hydrochloride.According to this process, monomethylhydrazine can be prepared at a high selectivity very easily while controlling formation of by-products.
    Type: Grant
    Filed: December 3, 1981
    Date of Patent: August 8, 1989
    Assignee: Japan Hydrazine Co., Inc.
    Inventors: Shiro Hojo, Yoichi Hasegawa, Takeo Hirai
  • Patent number: 4855504
    Abstract: High molecular weight amines having reduced low molecular weight amine contents are obtained by reacting a mixture of (1) a high molecular weight amine and (2) a low molecular weight amine with (3) an isocyanate in quantities such that from 0.5 to 10 equivalents of isocyanate are present for each equivalent of low molecular weight amine. The product of high molecular weight amines is particularly useful in the production of isocyanate addition products such as polyurethane plastics and foams.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: August 8, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Rasshofer, Ernst Grigat, Gerhard Grogler, Heinrich Hess, Richard Kopp
  • Patent number: 4855502
    Abstract: Novel 4-phenyl-1,3-benzodiazepines, novel intermediates thereof, and methods of preparing same are described. These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: August 8, 1989
    Assignee: Hoechst-Roussel Pharmaceuticals, Inc.
    Inventors: Lawrence L. Martin, Manfred Worm, Charles A. Crishlow