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:
Mar. 04, 2014
Filed:
Sep. 16, 2008
Nobuo Kato, Suita, JP;
Yusuke Higuchi, Suita, JP;
Chihiro Kondo, Suita, JP;
Makoto Sunagawa, Itami, JP;
Nobuo Kato, Suita, JP;
Yusuke Higuchi, Suita, JP;
Chihiro Kondo, Suita, JP;
Makoto Sunagawa, Itami, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
The object is to provide a stable SM-108 derivative, which is effective as a carcinostatic agent, particularly an SM-108 derivative having good storage stability. An SM-108 compound having good storage stability can be produced by producing an organic sulfonic acid salt compound of SM-108. Further, a crystalline SM-108 compound containing a trace amount of an organic carboxylic acid can be produced by using an aqueous solution of the organic sulfonic acid salt of SM-108, and by adding an alkali metal salt of an organic carboxylic acid to the aqueous solution to neutralize the aqueous solution and then causing the crystal precipitation in the solution.