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:
Mar. 15, 1994
Filed:
Sep. 14, 1990
Istvan Hermecz, Budapest, HU;
Geza Keresturi, Budapest, HU;
Lelle V Debreczy, Budapest, HU;
Agnes Horvath, Budapest, HU;
Maria Balogh, Dunakeszi, HU;
Gabor Kovacs, Budapest, HU;
Tamas Szuts, Budapest, HU;
Peter Ritli, Budapest, HU;
Judit Sipos, Budapest, HU;
Aniko Pajor, Budapest, HU;
Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt., Budapest, HU;
Abstract
The invention relates to a new process for the preparation of compounds of the Formula I ##STR1## (wherein R stands for hydrogen or methyl) and pharmaceutically acceptable salts thereof which comprises reacting a compound of the Formula V ##STR2## (wherein R.sup.1 and R.sup.2 stand for an aliphatic acyloxy group comprising 2-6 carbon atoms and optionally substituted by halogen: or for an aromatic acyloxy group comprising 7-11 carbon atoms) with an amine of the Formula VI ##STR3## (wherein R has the same meaning as stated above) or a salt thereof and subjecting the compound of the Formula VII ##STR4## thus obtained (wherein R, R.sup.1 and R.sup.2 are as stated above) to hydrolysis after or without isolation and if desired converting the compound of the Formula I thus obtained into a salt thereof or setting free the same from its salt. The compounds of the Formula I are known antibacterial agents.