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:
Apr. 06, 1976
Filed:
Jul. 17, 1974
Applicant:
Inventors:
Hamao Umezawa, Tokyo, JA;
Sumio Umezawa, Tokyo, JA;
Eiichi Akita, Kamakura, JA;
Yukio Horiuchi, Yokohama, JA;
Shuntaro Yasuda, Yokohama, JA;
Osamu Tsuchiya, Yokohama, JA;
Assignee:
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07G / ;
U.S. Cl.
CPC ...
2602 / ; 2602 / ; 2602 / ; 424180 ;
Abstract
Process of producing a 1-N-((S)-.alpha.-hydroxy-.omega.-aminoacyl)-3',4'-dideoxyneamine or -3',4'-dideoxyribostamycin, a useful semi-synthetic antibiotic in which the corresponding 6-O-((S)-.alpha.-hydroxy-.omega.-aminoacyl)-3',4'-dideoxyneamine or -3',4'-dideoxyribostamycine undergoes the acyl-migration reaction by treating with a basic medium.