Patents by Inventor Ekaterina A. Kelekhsaeva

Ekaterina A. Kelekhsaeva 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).

  • Sydnonimine N-acyl derivatives and method for preparing same
    Patent number: 4245100
    Abstract: N-acyl sydnonimines of the formula: ##STR1## wherein R is phenyl, .beta.-phenylethyl, dl-.alpha.-methyl-.beta.-phenylethyl or l-.alpha.-methyl-.beta.-phenylethyl; R' is hydrogen, phenyl; X is a lower alkyl, phenyl, ##STR2## wherein R" is hydrogen, a halogen, a lower fluorinated alkyl; R'" is hydrogen, a halogen, a lower alkyl; when R is dl-.alpha.-methyl-.beta.-phenylethyl, R' is H, R" is Cl, R'" is only Cl, while when R' is H, X is NHC.sub.6 H.sub.5 R is only l-.alpha.-methyl-.beta.-phenylethyl; when X is phenyl, R and R' are each phenyl only.The method for preparing sydnonimine N-acylderivatives comprises reacting N-nitrosoderivatives of N-substituted nitriles of .alpha.-aminoacids of the formula: ##STR3## wherein R is phenyl, .beta.-phenylethyl, di-.alpha.-methyl-.beta.-phenylethyl or l-.alpha.-methyl-.beta.
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: January 13, 1981
    Assignees: Vsesojuzny nauchno-issledovatelsky khimikofarmatsevtichesky institut imeni S. Ordzhonikidze, Institut biofiziki
    Inventors: Leonid E. Kholodov, Vladimir G. Yashunsky, Roald A. Altshuler, Mikhail D. Mashkovsky, Valentina V. Ogorodnikova, Zoya A. Olovyanishnikova, Anna S. Vitvitskaya, Valery A. Parshin, Ekaterina A. Kelekhsaeva