Patents Assigned to Chinoin Gyogyszer es Vegyeszeti Termeker Gyara Rt.
  • Treating process
    Patent number: 4666912
    Abstract: The invention relates to a process for the restoration and prevention of gastrointestinal injuries, which comprises treating a patient with an effective dose of racemic or optically active 1,6-dimethyl-4-oxo-1,6,7,8,9,9a-hexahydro-4H-pyrimido[1,2-a]pyrimidine-3-c arboxamide.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: May 19, 1987
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termeker Gyara RT
    Inventors: Zoltan Meszaros, Jozse Knoll, Istvan Hurmecz, Peter Szentmiklosi, Agnes Horvath, Lelle Vasvari nee Debreczy, Gabor Kovacs, Klara Gyires, Sandor Virag
  • Process for heterogeneous nucleophilic substitution reactions
    Patent number: 4229366
    Abstract: The invention relates to a process for nucleophilic substitution reactions. According to the invention the reaction is carried out in a heterogeneous system, consisting of a solid and a dissolved reactant, one or several organic solvents, one or several linear polyether derivatives, and/or amino compounds and water.The volume of the water is preferably at the most 100% of the volume of the organic solvent and more preferably 5%.According to the invention the anhydrous reaction medium which is difficult to ensure, is not necessary and the use of the expensive and in industrial scales unavailable crown ethers is eliminated.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: October 21, 1980
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termeker Gyara Rt.
    Inventors: Laszlo Toke, Gabor T. Szabo, Gabor Szabo, Lajos Nagy, Istvan Rusznak