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. 07, 1989
Filed:
Oct. 07, 1987
Applicant:
Inventors:
Andras Vedres, Budapest, HU;
Csaba Szantay, Budapest, HU;
Istvan Moldvai, Budapest, HU;
Bela Stefko, Budapest, HU;
Dora Groo, Budapest, HU;
Egon Karpati, Budapest, HU;
Bela Kiss, Vecses, HU;
Eva Palosi, Budapest, HU;
Miklos Riesz, Budapest, HU;
Zsolt Szombathelyi, Budapest, HU;
Laszlo Szporny, Budapest, HU;
Maria Zajer nee Balazs, Budapest, HU;
Assignee:
Richter Gedeon Vegyeszefi Gyar R.T., Budapest, HU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514283 ; 544125 ; 544361 ; 546 51 ;
Abstract
The invention relates to a new process for preparing novel racemic and optically active 9- or 11-nitroapovincaminic acid derivatives of the general formula (I) ##STR1## wherein R stands for a --CO--X group, wherein X means a halogen atom; or