Patents by Inventor Arne E. Brandstrom

Arne E. Brandstrom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5441968
    Abstract: The novel compounds of the formulas I and I' ##STR1## wherein F is in 5 or 6 position and ##STR2## wherein in both formulas R is the group --CH.sub.2 OCOOR.sup.1, wherein R.sup.1 is a straight or branched alkyl containing 1-6 carbon atoms or benzyl, or R.sup.1 is the group ##STR3## wherein n is 1-6 and physiologically acceptable salts thereof as well as intermediates, pharmaceutical compositions containing such compounds as active ingredient, and the use of the compounds in medicine.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: August 15, 1995
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Per L. Lindberg, Gunnel E. Sunden
  • Patent number: 5386032
    Abstract: The present invention relates to an improved method for the synthesis of omeprazole, comprising the steps of reacting 5-methoxy-2-[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methylthio]-1H-benzimida zole with m-chloroperoxybenzoic acid in a methylene chloride solution at a substantially constant pH of about 8.0 to 8.6; extracting the reaction mixture with aqueous NaOH; separating the aqueous phase from the organic phase; and adding an alkyl formate to the aqueous phase, resulting in crystallization of omeprazole.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: January 31, 1995
    Assignee: Aktiebolaget Astra
    Inventor: Arne E. Brandstrom
  • Patent number: 5049674
    Abstract: The novel compounds of the formulas I and I' ##STR1## wherein F is in 5 or 6 position and ##STR2## wherein in both formulas R is the group --CH.sub.2 OCOOR.sup.1, wherein R.sup.1 is a straight or branched alkyl containing 1-6 carbon atoms or benzyl, or R.sup.1 is the group ##STR3## --(CH.sub.2).sub.n COOH or --(CH.sub.2).sub.n SO.sub.3 H wherein n is 1-6 and physiologically acceptable salts thereof as well as intermediates, pharmaceutical compositions containing such compounds as active ingredient, and the use of the compounds in medicine.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: September 17, 1991
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Per L. Lindberg, Gunnel E. Sunden
  • Patent number: 5039808
    Abstract: The novel compound 5-fluoro-2[[(4-cyclopropylmethoxy-2-pyridinyl)methyl]sulfinyl]-1H-benzimid azole and physiologically acceptable salts thereof as well as intermediates, pharmaceutical compositions containing the compound as active ingredient, and the use of the compound in medicine.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: August 13, 1991
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Per L. Lindberg, Gunnel E. Sunden
  • Patent number: 5025024
    Abstract: The novel compound 4-fluoro-2-[[(4-methoxy-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole and physiologically acceptable salts thereof as well as intermediates, pharmaceutical compositions containing such compounds as active ingredient, and the use of the compound in medicine.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: June 18, 1991
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Per L. Lindberg, Gunnel E. Sunden
  • Patent number: 5019584
    Abstract: 5-Chloro-2-[[(3,4-dimethoxy-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole and physiologically acceptable salts thereof as well as an intermediate, pharmaceutical compositions containing such compound as active ingredient, and the use of the compound in medicine.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: May 28, 1991
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Per L. Lindberg, Carl I. Starke, Gunnel E. Sunden
  • Patent number: 5008278
    Abstract: The novel compound 5-fluoro-2[[(4-cyclopropylmethoxy-2-pyridinyl) methyl]sulfinyl]-1H-benzimidazole and physiologically acceptable salts thereof as well as intermediates, pharmaceutical compositions containing the compound as active ingredient, and the use of the compound in medicine.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: April 16, 1991
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Per L. Lindberg, Gunnel E. Sunden
  • Patent number: 4965269
    Abstract: The novel compounds of the formula I ##STR1## wherein Cl is in 5 or 6 position and whereby R is the group --CH.sub.2 OCOOR.sup.1, wherein R.sup.1 is a straight or branched alkyl containing 1-6 carbon atoms or benzyl,or R.sup.1 is the group --(CH.sub.2).sub.n ##STR2## --(CH.sub.2).sub.n COOH or --(CH.sub.2).sub.n SO.sub.3 H wherein n is 1-6 and physiologically acceptable salts thereof as well as intermediates, pharmaceutical compositions containing such compounds as active ingredient, and the use of the compounds in medicine.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: October 23, 1990
    Assignee: AB Hassle
    Inventors: Arne E. Brandstrom, Per L. Lindberg, Carl I. Starke, Gunnel E. Sunden
  • Patent number: 4738974
    Abstract: Novel salts of omeprazole with Li.sup.+, Na.sup.+, K.sup.+, Mg.sup.2+, Ca.sup.2+, Ti.sup.4+, N.sup.+ (R.sup.1).sub.4 or ##STR1## as cation; processes for their preparation thereof, pharmaceutical compositions containing such salts and their use in medicine.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: April 19, 1988
    Assignee: Aktiebolaget Hassle
    Inventor: Arne E. Brandstrom
  • Patent number: 4725691
    Abstract: Novel compounds of the formula IIIa ##STR1## wherein R.sup.1a, R.sup.2a, R.sup.3a and R.sup.4a are the same or different and are hydrogen, an alkyl, alkoxy optionally completely or predominantly substituted by fluorine or chlorine, halogen, --CN, --CF.sub.3, --NO.sub.2, --COR, --COOR, aryl, aryloxy or arylalkoxy group, or adjacent groups R.sup.1a, R.sup.2a, R.sup.3a and R.sup.4a together with the adjacent carbon atoms in the benzimidazole ring form a 5-, 6- or 7-membered monocyclic ring or a 9-, 10- or 11-membered bicyclic ring, which rings may be saturated or unsaturated and may contain 0-3 heteroatoms selected from N and O and which rings may be optionally substituted with 1-4 substitutents selected from alkyl groups with 1-3 carbon atoms, halogen preferably F or Cl, alkylene radicals containing 4-5 carbon atoms giving spiro compounds, or two or four of these substituents together form one or two oxy groups ##STR2## whereby if R.sup.1a, R.sup.2a, R.sup.3a and R.sup.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: February 16, 1988
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Per L. Lindberg, Bjorn Wallmark
  • Patent number: 4689331
    Abstract: Novel compounds of the formula I ##STR1## and its salts; process for the preparation thereof, pharmaceutical compositions containing such compounds and their use in medicine to affect gastric acid secretion and provide gastrointestinal cytoprotection.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: August 25, 1987
    Assignee: Aktiebolaget Hassle
    Inventors: Kjell F. Ankner, Arne E. Brandstrom, Per L. Lindberg, Mats P. Nordberg, Bjorn M. G. Wallmark
  • Patent number: 4636499
    Abstract: Novel compounds of the formula IIIa ##STR1## wherein R.sup.1a, R.sup.2a, R.sup.3a and R.sup.4a are the same or different and are hydrogen, an alkyl, alkoxy optionally completely or predominantly substituted by fluorine or chlorine, halogen, --CN, --CF.sub.3, --NO.sub.2, --COR, --COOR, aryl, aryloxy or arylalkoxy group, or adjacent groups R.sup.1a, R.sup.2a, R.sup.3a and R.sup.4a together with the adjacent carbon atoms in the benzimidazole ring form a 5-, 6- or 7-membered monocyclic ring or a 9-, 10- or 11-membered bicyclic ring, which rings may be saturated or unsaturated and may contain 0-3 heteroatoms selected from N and O and which rings may be optionally substituted with 1-4 substitutents selected from alkyl groups with 1-3 carbon atoms, halogen perferably F or Cl, alkylene radicals containing 4-5 carbon atoms giving spiro compounds, or two or four of these substituents together form one or two oxy groups ##STR2## whereby if R.sup.1a, R.sup.2a, R.sup.3a and R.sup.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: January 13, 1987
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Per L. Lindberg, Bjorn Wallmark
  • Patent number: 4620008
    Abstract: Novel compounds of the formula ##STR1## wherein R is H or CH.sub.3, a process for their preparation, and their use as intermediates in the preparation of pharmaceutically useful compounds, e.g. substituted benzimidazoles containing a pyridine radical, i.a. omeprazole.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: October 28, 1986
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Bo R. Lamm
  • Patent number: 4544750
    Abstract: Novel compounds of the formula ##STR1## wherein R is H or CH.sub.3, a process for their preparation, and their use as intermediates in the preparation of pharmaceutically useful compounds, e.g. substituted benzimidazoles containing a pyridine radical, i.a. omeprazole.
    Type: Grant
    Filed: August 26, 1983
    Date of Patent: October 1, 1985
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Bo R. Lamm
  • Patent number: 4145442
    Abstract: Ortho-para-substituted phenoxy-hydroxypropylamines having the general formula ##STR1## and pharmaceutically acceptable, non-toxic acid addition salts thereof, wherein R.sup.1 is alkyl or hydroxyalkyl, R.sup.2 is alkoxyalkyl or alkylthioalkyl, and R.sup.3 is halogen, alkyl, alkenyl, alkinyl, alkoxymethyl, or alkoxy are disclosed, as are methods for their preparation.Pharmaceutical preparations are prepared whose active ingredients include at least one of the newly discovered phenoxy-hydroxypropylamine compounds. Therapeutically effective doses of these preparations selectively block the .beta.-receptors of the heart making them useful in treating heart diseases in animals including humans.
    Type: Grant
    Filed: August 31, 1976
    Date of Patent: March 20, 1979
    Assignee: Aktiebolaget Hassle
    Inventors: Peder B. Berntsson, Arne E. Brandstrom, Enar I. Carlsson, Stig A. I. Carlsson, Lars Ek, Benny R. Samuelsson, Sven E. Sjostrand, Gert C. Strandlund, Bengt A. H. Ablad