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. 18, 2008
Filed:
Apr. 23, 2004
Applicants:
Daisuke Takahashi, Kawasaki, JP;
Kunisuke Izawa, Kawasaki, JP;
Inventors:
Daisuke Takahashi, Kawasaki, JP;
Kunisuke Izawa, Kawasaki, JP;
Assignee:
Ajinomoto Co., Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07H 19/067 (2006.01); C07H 19/167 (2006.01);
U.S. Cl.
CPC ...
Abstract
A production method for conveniently producing a 5'-acyloxynucleoside compound shown by the formula [A] in a good yield while suppressing formation of by-products, including subjecting a 2′,3′,5′-triacyloxynucleoside compound represented by the formula [I] to selective deacylation in an alcohol represented by the formula [II] using a base selected from the group consisting of alkali metal hydroxide, alkali metal alkoxide and alkali metal carbonate: wherein each symbol in the formula is as defined in the specification.