Patents by Inventor Petr T. Trapentsier

Petr T. Trapentsier 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).

  • Ethyl-3-(2-ethyl-2,2-dimethylhydrazinium)-propionate salts to treat arrhythmia
    Patent number: 5017611
    Abstract: The present invention relates to the art of organic chemistry. The novel compounds - ethyl-3-(2-ethyl-2,2-dimethylhydrazinium)-propionate salts have the general formula: ##STR1## wherein X is Cl, Br, I. The compounds of the present invention possess an antiarrhythmic effect.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: May 21, 1991
    Inventors: Gunar A. Bremanis, Felix Z. Meerson, Ivars Y. Kalvinsh, Nurlan Abdikaliev, Petr T. Trapentsier, Ma/Ya G. Pshennikova, Irene B. Antsena, Edmund Y. Lukevits, Boris Z. Simkhovich
  • 3-(2,2,2-trisubstituted hydrazinium) propionates
    Patent number: 4704403
    Abstract: Novel compounds, viz. 3-(2,2,2-trisubstituted hydrazinium) propionates have the following general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are an alkyl, a substituted alkyl, a substituted or unsubstituted aryl, an aralkyl or an unsaturated alkyl;R.sup.4, R.sup.5 are hydrogen or a lower alkyl; n is 0 to 2, except for the case where R.sup.1, R.sup.2 and R.sup.3 are methyl, R.sup.4 and R.sup.5 are not hydrogen.The compounds of the present invention possess both hypotensive and antiarrhythmic activity and are useful in medicine.
    Type: Grant
    Filed: December 27, 1985
    Date of Patent: November 3, 1987
    Inventors: Gunar A. Bremanis, Ivars Y. Kalvinsh, Irene B. Antsena, Edmund Y. Lukevits, Maris M. Veveris, Marina L. Erenshtein, Valdis D. Mikazhan, Valeryans Y. Kauss, Edvard E. Liepinsh, Petr T. Trapentsier
  • 3-(2,2,2-Trimethylhydrazinium)propionate and method for the preparation and use thereof
    Patent number: 4481218
    Abstract: The novel compound according to the invention 3-(2,2,2-trimethylhydrazinium)-propionate has the general formula:(CH.sub.3).sub.3 NNHCH.sub.2 CH.sub.2 COO.2H.sub.2 O.The method for preparing this novel compound comprises passing a solution of 3-(2,2,2-grimethylhydrazinium) alkylpropionate of the formula:X.sup.- (CH.sub.3).sub.3 N.sup.+ NHCH.sub.2 CH.sub.2 COORwherein X is Cl, Br, I, CH.sub.3 SO.sub.4, R is a loawer alkyl, through a column with a strongly-basic anion exchange resin, followed by isolation of the desired product. The growth stimulator for animals and fowl contains the novel compound, i.e. 3-(2,2,2-trimethylhydrazinium)-propionate as the active principle.
    Type: Grant
    Filed: July 8, 1982
    Date of Patent: November 6, 1984
    Assignee: Institut Organicheskogo Sinteza Akademii Nauk Latviiskoi SSR
    Inventors: Anatoly Eremeev, Ivars Y. Kalvinsh, Valentina G. Semenikhina, Edvards E. Liepinsh, Yan Y. Latvietis, Paul P. Anderson, Elena B. Astapenok, Yazep Y. Spruzh, Petr T. Trapentsiers, Gennady I. Podoprigora, Solomon A. Giller, deceased