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.

Date of Patent:
Mar. 01, 2011

Filed:

Sep. 29, 2005
Applicants:

Hideaki Shimizu, Minato-ku, JP;

Miyuki Uchida, Minato-ku, JP;

Seigo Sawada, Minato-ku, JP;

Norimasa Kaneda, Minato-ku, JP;

Tsuneo Matsumoto, Minato-ku, JP;

Inventors:

Hideaki Shimizu, Minato-ku, JP;

Miyuki Uchida, Minato-ku, JP;

Seigo Sawada, Minato-ku, JP;

Norimasa Kaneda, Minato-ku, JP;

Tsuneo Matsumoto, Minato-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 401/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention is directed to an irinotecan acid addition salt which is formed through addition of an acid selected from the group consisting of sulfuric acid, nitric acid, phosphoric acid, methanesulfonic acid, citric acid, maleic acid, and succinic acid to irinotecan, to a method for producing the salt, and to a pharmaceutical composition containing the salt. The addition salt requires no heating process during drug preparation and provides an aqueous drug product in which the salt is stably dissolved.


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