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. 26, 1987
Filed:
Mar. 31, 1986
Applicant:
Inventors:
Toshiro Yamada, Fujisawa, JP;
Hiroshi Fujisawa, Yokohama, JP;
Kuniaki Goto, Tokyo, JP;
Shigeo Morimoto, Yoshikawamachi, JP;
Takashi Adachi, Washimiyamachi, JP;
Yoshiaki Watanabe, Kodaira, JP;
Assignees:
Nippon Zeon Co. Ltd., both of, JP;
Taisho Pharmaceutical Co. Ltd., both of, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
536-74 ; 536-72 ;
Abstract
There is disclosed a novel protected des-N-methylerythromycin derivative, in which 2', 3' and 9-positions are protected with new substituents that can provide stabler derivative and can be eliminated in a single reaction under neutral condition.