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:
Jun. 09, 2015
Filed:
Dec. 26, 2008
Katsuyuki Nagai, Tokyo, JP;
Shinya Kiguchi, Hyogo, JP;
Hiroya Koyama, Hyogo, JP;
William Ewan Hume, Hyogo, JP;
Satoshi Tsujimoto, Hyogo, JP;
Katsuyuki Nagai, Tokyo, JP;
Shinya Kiguchi, Hyogo, JP;
Hiroya Koyama, Hyogo, JP;
William Ewan Hume, Hyogo, JP;
Satoshi Tsujimoto, Hyogo, JP;
ONCOLYS BIOPHARMA, INC., Tokyo, JP;
Abstract
Disclosed is a method for mass-producing 4'-ethynyl d4T (4′-ethynyl-2′,3′-didehydro-3′-deoxythymidine) by a simpler process at low cost. Specifically disclosed is a method for producing 4′-ethynyl d4T, which is characterized by comprising a step for introducing a triple bond-containing group into a furfuryl alcohol derivative or a levoglucosenone, by reacting the furfuryl alcohol derivative or levoglucosenone with a certain compound, and a step for reacting a compound represented by the formula (III), which is obtained by the aforementioned step, with thymine.