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:
Sep. 05, 2017
Filed:
May. 29, 2014
Applicant:
Meiji Seika Pharma Co., Ltd., Tokyo, JP;
Inventors:
Hiroyasu Miwa, Tokyo, JP;
Hisashi Kishi, Kitakami, JP;
Toshiro Sasaki, Odawara, JP;
Takashi Murata, Yokohama, JP;
Makoto Oyama, Kyobashi, JP;
Nao Sano, Odawara, JP;
Ayako Odagiri, Yokohama, JP;
Assignee:
MEIJI SEIKA PHARMA CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H 15/234 (2006.01);
U.S. Cl.
CPC ...
C07H 15/234 (2013.01);
Abstract
It has been found that adding carbon dioxide or the like to a solution containing arbekacin free base makes it possible to produce arbekacin derivatives including arbekacin carbonate and carbamic acid of arbekacin. Moreover, it has been found that the arbekacin derivatives have a high stability, and that the use thereof enables efficient productions of highly-pure arbekacin free base and pharmaceutically acceptable salt thereof.