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. 24, 1980
Filed:
Mar. 01, 1978
Applicant:
Inventors:
Karola Jovanovics, Budapest, HU;
Lajos Dancsi, Budapest, HU;
Sandor Eckhardt, Budapest, HU;
Csaba Lorincz, Budapest, HU;
Janos Sugar, Budapest, HU;
Zsuzsa Relle nee Somfai, Budapest, HU;
Kalman Szasz, Budapest, HU;
Jozsef Tamas, Budapest, HU;
Aron Szollosy, Budapest, HU;
Assignee:
Richter Gedeon Vegyeszeti Gyar Rt., Budapest, HU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602444 ; 424258 ;
Abstract
A mixture of minor diindole alkaloids from Vinca-containing vinblastine and 4-deacetoxy-vinblastine vines, are separated by subjecting the mixture to a deacetylation to correct the vinblastine to deacetyl-vinblastine prior to chromatographic separation of said mixture in a single stage.