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. 03, 2013
Filed:
Dec. 06, 2011
Teruhiko Ishikawa, Okayama, JP;
Seiki Saito, Okayama, JP;
Takayuki Kudoh, Okayama, JP;
Kotaro Suto, Okayama, JP;
Hironori Nishiuchi, Okayama, JP;
Makoto Okada, Okayama, JP;
Masatoshi Taniguchi, Okayama, JP;
Teruhiko Ishikawa, Okayama, JP;
Seiki Saito, Okayama, JP;
Takayuki Kudoh, Okayama, JP;
Kotaro Suto, Okayama, JP;
Hironori Nishiuchi, Okayama, JP;
Makoto Okada, Okayama, JP;
Masatoshi Taniguchi, Okayama, JP;
National University Corporation Okayama University, Okayama, JP;
Abstract
It is possible to produce oseltamivir safely and stably in large quantities by using as a starting material tartaric acid, mannitol or arabinose, via dihydroxyhexenoic acid ester of the formula (4): (wherein R, Rand Rare same or different and are each alkyl, aryl, substituted aryl, aralkyl, substituted aralkyl or aromatic heterocyclic group, and Rand Rare not methyl simultaneously).