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:
Sep. 25, 1979
Filed:
Nov. 14, 1977
Applicant:
Inventors:
Assignee:
Societa' Farmaceutici Italia S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07G / ;
U.S. Cl.
CPC ...
424180 ; 536 / ;
Abstract
Anthracycline disaccharides having antitumor activity are prepared by condensing N-trifluoroacetyldaunomycin with a 1-halosugar in the presence of a silver salt such as AgSO.sub.3 CF.sub.3 as catalyst to form a protected di-glycoside which upon mild alkaline hydrolysis yields the novel disaccharides.