Patents Assigned to Aktiebolaget Astra
  • Patent number: 5468876
    Abstract: Disclosed are (R)- and (S)-isomers of the compounds of the Formulas II and III with at least 95% optical purity ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and represent a hydrogen atom, a lower alkyl, lower alkenyl or lower alkynyl group, a cycloalkyl group or a group (CH.sub.2).sub.m Ph, wherein m is 0-3 and Ph is a substituted or unsubstituted phenyl group.These compounds are intermediates in the stereoconservative synthesis of 1-substituted (S)- and (R)-2-aminomethylpyrrolidines.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: November 21, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Hans-Jugen Federsel, Thomas Ho, Sten I. Ramsby, Peter H. E. Strom
  • Patent number: 5455230
    Abstract: Compounds of the formula I as well as a process for their preparation, their pharmaceutical preparations and their useH--Tyr--Tic--X (I)wherein X is--Phe--OH,--Phe--NH.sub.2,--Phe--Phe--OH,--Phe--Phe--NH.sub.2,--Trp--Phe--NH.sub.2,--Trp--Phe--OH,--Phe--Phe(p-NO.sub.2)--OH,--Trp--Phe(p-NO.sub.2)--H or--Phe--Trp--NH.sub.2.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: October 3, 1995
    Assignee: Aktiebolaget Astra
    Inventor: Peter W. Schiller
  • Patent number: 5441976
    Abstract: A pharmaceutical preparation and method for the treatment of diseases due to defects in the immune system using cystine derivatives.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: August 15, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Carl-Magnus A. Andersson, Hakan S. A. Bergstrand, Anders R. Hallberg, Bengt O. Sarnstrand, Anders P. S. Tunek
  • Patent number: 5439917
    Abstract: Therapeutically active compounds of the formula: ##STR1## wherein the variables are defined in the specification are provided.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: August 8, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Carin Briving, Stig Carlsson, Robert Carter, Marie Elebring, Thomas Kuhler, Peter Nordberg, Ingemar Starke, Arne Svensson
  • Patent number: 5434304
    Abstract: The present invention is directed to a process for preparing formoterol and related compounds and derivatives thereof and their pharmacologically and pharmaceutically acceptable fumarate salts and/or solvates. The present invention is also directed to certain formoterol related compounds per se.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: July 18, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Jan W. Trofast, Edib Jakupovic, Katarina L. Mansson
  • Patent number: 5430042
    Abstract: The novel compounds of the formula I ##STR1## and physiologically acceptable salts thereof, wherein R.sup.1 and R.sup.2, which are different is each H alkyl containing 1-4 carbon atoms or --C(O)--R.sup.5 ;whereinR.sup.5 is alkyl containing 1-4 carbon atoms or alkoxy containing 1-4 carbon atoms and one of R.sup.1, or R.sup.2 is always selected from the group --C(O)--R.sup.5 ;R.sup.3 and R.sup.4 are the same or different and selected from ##STR2## and --CH.sub.2 CH.sub.2 OCH.sub.3 or R.sup.3 and R.sup.4 together with the adjacent oxygen atoms atached to the pyridine ring and the carbon atoms in the pyridine ring form a ring, wherein the part constituted by R.sup.3 and R.sup.4 is --CH.sub.2 CH.sub.2 CH.sub.2 --, or --CH.sub.2 --CH.sub.2 -- or --CH.sub.2 --; as well as intermediates, pharmaceutical compositions containing such compounds as active ingredient and the use of the compounds in medicine.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: July 4, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Per L. Lindberg, Gunnel E. Sunden
  • Patent number: 5420151
    Abstract: 3-amino-5-carbamoylchromans and 8-fluoro-3-amino-5-carbamoylchromans, as well as enantiomers and salts thereof, are disclosed. Pharmaceutical compositions containing the compounds as active ingredients are also disclosed. The compounds are useful in the treatment of 5-hydroxytryptamine-mediated disorders of the central nervous system.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: May 30, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Eva M. Hammarberg, Lars G. Johansson, Svante B. Ross, Seth-Olov Thorberg
  • Patent number: 5419918
    Abstract: A method for the manufacture of oral controlled release dosage units containing hydroxypropyl methylcellulose wherein the aqueous granulation is performed in the presence of one or more solutes, which inhibit gel formation during the granulation but allows the formation of a gel when administered orally. Also the new dosage units prepared according to the invention are included.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: May 30, 1995
    Assignee: Aktiebolaget Astra
    Inventor: Per Johan G. Lundberg
  • Patent number: 5409125
    Abstract: A liquid containing thermoplastic unit dose container (1) which comprises a body portion (2), a neck portion (3) and an outlet opening (7) at the end of the neck portion (3) which is sealed by a non-resealable cap (4). The outside wall of the neck portion (3) comprises a thread engagement portion (8) which is located at or proximate the outermost edge of the neck portion (3) so that after removal of cap (4) thread engagement portion (8) is adapted to engage within an inwardly facing screw thread channel (14) at the end of a syringe. This enables sealing connection of the container (1) to the syringe so that liquid within container (1) may be directly transferred from the container (1) to the syringe.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: April 25, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Michael B. Kimber, Anders T. Kers, Borje Jonsson
  • Patent number: 5399572
    Abstract: A thiazole of the following formula is disclosed ##STR1## for the treatment of neurodegeneration involving loss of neuronal structure.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: March 21, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Alfred R. Green, Alan J. Cross, Bernard R. Boar
  • Patent number: 5399490
    Abstract: In this patent application we have described the construction of a novel secretion vector based on E. coli enterotoxin coding sequence. We have shown categorically that pre and pro regions of toxin gene are absolutely necessary for extra cellular secretion of the stable toxin. We have also shown with specific examples that when the nucleotide coding sequence of a heterologous peptide is fused in frame to the end of the pro region in the st gene, the resultant vector in an E. coli host secretes extracellularly correctly processed heterologous peptide. This application also includes construction of suitable vectors where this gene fusion can be achieved. Generally methods to create such fusions involving a) recombinant DNA technology and b) the use of site directed in vitro mutagenesis, have also been described. A general method of purification of heterologous peptides is also described in this application.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: March 21, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Tanjore S. Balganesh, Goutam Das, Sandhya S. Visweswariah
  • Patent number: 5395323
    Abstract: The invention provides a device for mixing a pharmaceutical from a solid supply into a parenterally acceptable liquid flowing through a set for parenteral administration of the liquid to a patient, said device comprising a first compartment defining a mixing space through which the liquid flows in a define flow direction and in which the liquid mixes with the pharmaceutical in liquid solution.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: March 7, 1995
    Assignee: Aktiebolaget Astra
    Inventor: Bengt G. Berglund
  • Patent number: 5385921
    Abstract: New pharmaceutical formulations comprising 5-(2-chloro-1-hydroxyethyl)-4-methylthiazole or optical isomers or a pharmaceutically acceptable salt or solvate thereof.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: January 31, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Bernard R. Boar, Alan J. Cross, Alfred R. Green, Curt-Eric Hagberg
  • 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: 5385904
    Abstract: New crystalline organic salts of N,N'-diacetyl cystine with immunomodulating effect, processes for their preparation, pharmaceutical compositions containing them and methods of their pharmacological use.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: January 31, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Carl-Magnus A. Andersson, Hakan S. A. M. Bergstrand, Edib Jakupovic, Bo-Goran Josefsson, Magnus L. Lindvall, Bengt O. Sarnstrand, Eric N. G. Teneberg
  • Patent number: D355487
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: February 14, 1995
    Assignee: Aktiebolaget Astra
    Inventor: Leif Broberg
  • Patent number: D355972
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: February 28, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Leif Broberg, Anders Holmen
  • Patent number: D356868
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: March 28, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Leif Broberg, Stig G. V. Hansson
  • Patent number: D356869
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: March 28, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Anders Holmen, Leif Broberg
  • Patent number: D362720
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: September 26, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Anders Holmen, Leif Broberg