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. 31, 1984
Filed:
Feb. 13, 1981
Applicant:
Inventors:
Csaba Szantay, Budapest, HU;
Lajos Szabo, Budapest, HU;
Gyorgy Kalaus, Budapest, HU;
Lajos Dancsi, Budapest, HU;
Tibor Keve, Budapest, HU;
Egon Karpati, Budapest, HU;
Laszlo Szporny, Budapest, HU;
Assignee:
Richter Gedeon Vegyeszeti Gyar Rt., Budapest, HU;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
2602444 ; 424262 ;
Abstract
A novel process for preparing 10-bromo-vincaminic acid esters and homologous compounds of the general formula ##STR1## wherein R.sup.1 and R.sup.2 each stand for a C.sub.1-6 alkyl group is disclosed. All the intermediate products are new and exhibit valuable therapeutical effect on the blood circulation.