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:
Jun. 01, 1993
Filed:
Apr. 17, 1991
Pal Benko, Budapest, HU;
Daniel Bozsing, Budapest, HU;
Laszlo Levai, Budapest, HU;
Gyorgyi Kovanyi nee Lax, Budapest, HU;
Gyorgy Mikite, Budapest, HU;
Peter Tompe, Budapest, HU;
Eva Furdyga, Budapest, HU;
Ilona Dinnyes nee Nagy, Budapest, HU;
Eva Poczik, Budapest, HU;
Gyorgyi Zalavari nee Dosa, Budapest, HU;
Ivan Beck, Budapest, HU;
Istvan Simonyi, Budapest, HU;
Kalman Nagy, Budapest, HU;
Janos Imre, Budapest, HU;
Erzsebet Kiss nee Bertok, Budapest, HU;
Eva J Tajthy nee Juhasz, Budapest, HU;
Attila Mandi, Budapest, HU;
Frigyes Gorgenyi, Budapest, HU;
EGIS Gyogyszergyar, Budapest, HU;
Abstract
The invention relates to a process for the preparation of dimethyl-1,4-dihydro-2,6-dimethyl-4-(2'-nitro-phenyl)-pyridine-3,5-dicarbo xylate of the Formula I ##STR1## which comprises a) reacting a compound of the general Formula II ##STR2## (wherein n is 1 or 3; if n is 1, then R stands for a group of the Formula (a) ##STR3## and if n is 3, then R represents hydrogen) with methyl acetoacetate of the Formula III