Patents by Inventor Alexandr G. Shipov

Alexandr G. Shipov 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).

  • Lactam-1-acetic acid carbalkoxymethyl esters and method for preparing same
    Patent number: 5021568
    Abstract: The present invention relates to organic chemistry. Lactam-1-acetic acid carbalkoxymethyl esters have the following general formula: ##STR1## wherein with R=H, n=1 or 3; with R=phenyl, n=1; R.sup.1 is an alkyl. A method for preparing said compounds comprises reacting lactams of the general formula: ##STR2## wherein with R=H, n=1 or 3, with R=phenyl n=1, with an alkali in a medium of aprotic solvents at a temperature of from 70.degree. to 130.degree. C., followed by the addition of an alkyl ester of a monohalcacetic acid to the resulting mixture and isolation of the desired product.The compounds according to the present invention are intermediate products in the synthesis of known biologically active substances.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: June 4, 1991
    Inventors: Alexandr G. Shipov, Evgenia P. Kramarova, Natalia A. Orlova, Jury I. Baukov, Kristap M. Ziemelis