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:
Nov. 30, 2010
Filed:
Sep. 28, 2006
Hisashi Takahashi, Edogawa-ku, JP;
Rie Miyauchi, Edogawa-ku, JP;
Yasuyuki Takeda, Edogawa-ku, JP;
Kazuo Kanai, Edogawa-ku, JP;
Junichi Kuroyanagi, Edogawa-ku, JP;
Satoshi Komoriya, Edogawa-ku, JP;
Makoto Takemura, Edogawa-ku, JP;
Hisashi Takahashi, Edogawa-ku, JP;
Rie Miyauchi, Edogawa-ku, JP;
Yasuyuki Takeda, Edogawa-ku, JP;
Kazuo Kanai, Edogawa-ku, JP;
Junichi Kuroyanagi, Edogawa-ku, JP;
Satoshi Komoriya, Edogawa-ku, JP;
Makoto Takemura, Edogawa-ku, JP;
Daiichi Sankyo Company, Limited, Tokyo, JP;
Abstract
The present invention provides a method for effectively producing an optically active form of tetrasubstituted-5-azaspiro[2.4]heptane derivative, which serves as a useful production intermediate for quinolonecarboxylic acid antibacterial agents, and intermediates for the derivative. The present invention is directed to a method for producing a compound (VII) according to the following scheme.