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:
Apr. 05, 2005
Filed:
May. 15, 2002
Hironori Komatsu, Mobara, JP;
Toshiyuki Kouno, Mobara, JP;
Katsutoshi Tsuchiya, Mobara, JP;
Hiroharu Tanikawa, Mobara, JP;
Hiroki Ishibashi, Omuta, JP;
Hironori Komatsu, Mobara, JP;
Toshiyuki Kouno, Mobara, JP;
Katsutoshi Tsuchiya, Mobara, JP;
Hiroharu Tanikawa, Mobara, JP;
Hiroki Ishibashi, Omuta, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
This invention provides a method for efficiently purifying 5'-protected thymidines which cannot be efficiently purified by the prior art. Impurities can be separated by obtaining crystals including a carbonyl-containing solvent to provide a highly pure 5′-protected thymidine. Thus, this invention allows 5′-protected thymidines, which cannot be purified in an industrial scale by the prior art, to be easily provided with a high purity in a large scale.