The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2015
Filed:
Jun. 21, 2013
Applicant:
Tallinn University of Technology, Tallinn, EE;
Inventors:
Assignee:
Tallinn University of Technology, Tallinn, EE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/313 (2006.01); C07C 67/333 (2006.01); C07C 67/343 (2006.01);
U.S. Cl.
CPC ...
C07C 67/343 (2013.01);
Abstract
The invention relates to the method of preparation of compounds of formula I, the precursors of homocitric acid lactone and its salts, by coupling of the compounds of formula II with bromoacetic acid esters of formula III.