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. 11, 1976
Filed:
Mar. 05, 1974
Applicant:
Inventors:
Sumio Umezawa, Tokyo, JA;
Hamao Umezawa, Tokyo, JA;
Osamu Tsuchiya, Yokohama, JA;
Isamu Watanabe, Murayama, JA;
Assignee:
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
2602 / ; 424180 ;
Abstract
Lividomycin B derivatives having enhanced antibacterial activity are provided; the 6'-deoxy-6' substituted or unsubstituted amino lividomycins are prepared by masking the functional groups other than the 4' - and 6' -hydroxyl groups, converting the 6' hydroxyl group to an amino group and then removing the remaining protective groups.