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:
May. 23, 1978
Filed:
Sep. 16, 1976
Applicant:
Inventors:
Hamao Umezawa, Tokyo, JA;
Sumio Umezawa, Tokyo, JA;
Shunzo Fukatsu, Tokyo, JA;
Shigeo Seki, Tokyo, JA;
Masao Murase, Kawasaki, JA;
Shuntaro Yasuda, Yokohama, JA;
Assignee:
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ; A61K / ;
U.S. Cl.
CPC ...
536 10 ; 424180 ;
Abstract
As new semi-synthetic antibiotic derivative are provided N-methanesulfonic acid derivatives of 3',4'-dideoxykanamycin B which are less toxic than the parent antibiotic and have useful high antibacterial activity. They are produced by interacting 3',4'-dideoxykanamycin B, an aldehyde such as paraformaldehyde and sulfurous acid or an alkali metal sulfite reagent.