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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.:

US 4515941 B1

PDFFull Text
Date of Patent:
May. 07, 1985

Filed:

Mar. 30, 1983

23-demycinosyldesmycosin derivatives

Applicant:
Inventors:

Tatsuro Fujiwara, Shizuoka, JP;

Hideyuki Watanabe, Shizuoka, JP;

Takao Hirano, Shizuoka, JP;

Hideo Sakakibara, Shizuoka, JP;

Assignee:

Toyo Jozo Kabushiki Kaisha, Shizuoka, JP;

Attorney:

Ladas & Parry

Primary Examiner:

Johnnie R Brown

Assistant Examiner:

Elli Peselev

Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
536-71 ; 536-72 ;
Abstract

Novel 23-demycinosyldesmycosin derivatives are disclosed of the formula ##STR1## wherein A is oxygen or sulfur, R.sub.1 is optionally substituted phenyl or ##STR2## group, in which R.sub.3 is optionally substituted phenyl and R.sub.4 and R.sub.5 are the same or different and are hydrogen, lower alkyl or optionally substituted phenyl, and R.sub.2 is hydrogen or hydroxyl. The compounds or non-toxic salts thereof are useful as antibiotics.

Find Patent Forward Citations

Fujiwara, Tatsuro. (1985). 23-demycinosyldesmycosin derivatives (U.S. Patent No. 4515941). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4515941

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