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. 19, 1981
Filed:
Sep. 14, 1979
Applicant:
Inventors:
Hideo Sakakibara, Mishima, JP;
Tatsuro Fujiwara, Shizuoka, JP;
Osamu Okegawa, Shizuoka, JP;
Toshiyuki Watanabe, Shizuoka, JP;
Susumu Watanabe, Shizuoka, JP;
Tetsuo Matsuda, Shizuoka, JP;
Assignee:
Toyo Jozo Kabushiki Kaisha, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07H / ;
U.S. Cl.
CPC ...
536 / ; 424180 ; 536-4 ;
Abstract
Derivatives of antibiotic tylosin of the formula ##STR1## wherein R.sub.1 is hydrogen or lower alkanoyl, A.sub.1 and A.sub.2 are groups of which one is R.sub.2 and the other is R.sub.3, and R.sub.2 and R.sub.3 are C.sub.2-6 alkanoyl, or a physiologically acceptable salt thereof, have enhanced antibacterial activity against macrolide antibiotic-resistant strains.