Patents by Inventor Jury A. Fialkov

Jury A. Fialkov 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).

  • Process for preparing difluoromethoxy derivatives of aromatic aldehydes
    Patent number: 4316989
    Abstract: A process for preparing difluoromethoxy derivatives of aromatic aldehydes having a common formula ##STR1## where Z is H,H; or n is a whole number of 1 and 2.The above process comprises the reaction between oxy derivatives of aromatic aldehydes selected from the group consisting of monooxy derivatives of aromatic aldehydes, and difluorochloromethane which reaction is carried out in an aqueous-dioxane medium at a temperature of 60.degree. to 70.degree. C., in the presence of 6 to 10 moles of caustic alkali per 1 mole of a starting oxyaldehyde.
    Type: Grant
    Filed: May 29, 1980
    Date of Patent: February 23, 1982
    Inventors: Jury A. Fialkov, Svetlana V. Shelyazhenko
  • 2,6-Dimethyl-3,5-dimethoxycarbonyl-4-(ortho-difluoromethoxyphenyl)-1,4-di hydropyridine
    Patent number: 4219653
    Abstract: The present invention relates to derivatives of 1,4-dihydropyridine and, more specifically, to 2,6-dimethyl-3,5-dimethoxycarbonyl-4-(o-difluoromethoxyphenyl)-1,4-dihydro pyridine of the formula: ##STR1## This compound features a clearly pronounced hypotensive activity while being low-toxic, wherefore it can be used in medicine for treating hypertensive disease.
    Type: Grant
    Filed: January 5, 1979
    Date of Patent: August 26, 1980
    Inventors: Valeria V. Kastron, Rasma O. Vitolin, Jury A. Fialkov, Svetlana V. Shelyazhenko, Gunar Y. Dubur, Agris A. Kimenis, Lev M. Yagupolsky