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:
Jul. 03, 2007
Filed:
Feb. 03, 2003
Shohei Yasuda, Kanagawa-Ken, JP;
Koreaki Imura, Kanagawa-Ken, JP;
Yumiko Okada, Kanagawa-Ken, JP;
Shinichiro Tsujiyama, Kanagawa-Ken, JP;
Shohei Yasuda, Kanagawa-Ken, JP;
Koreaki Imura, Kanagawa-Ken, JP;
Yumiko Okada, Kanagawa-Ken, JP;
Shinichiro Tsujiyama, Kanagawa-Ken, JP;
Meiji Seika Kaisha, Ltd., Tokyo-to, JP;
Abstract
Disclosed is a process for efficiently producing a compound represented by formula (I): wherein Rrepresents aryl, amino, alkyl, or alkoxy; Rrepresents a protective group of the carboxylic acid; and Rrepresents an alkali metal, a hydrogen atom, alkyl, aryl, alkylsulfonyl, arylsulfonyl, or trialkylsilyl. This process is characterized by reacting a compound of formula (II) with a compound of formula (III) in the presence of a transition metal compound.