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:
Nov. 08, 2005
Filed:
Sep. 12, 2001
Robert O. Dempcy, Kirkland, WA (US);
A. David Adams, Snohomish, WA (US);
Michael W. Reed, Seattle, WA (US);
Yevgeniy S. Belousov, Mill Creek, WA (US);
Robert O. Dempcy, Kirkland, WA (US);
A. David Adams, Snohomish, WA (US);
Michael W. Reed, Seattle, WA (US);
Yevgeniy S. Belousov, Mill Creek, WA (US);
Epoch Biosciences, Inc., Bothell, WA (US);
Abstract
The present invention provides a nucleoside comprising a pyrazolopyrimidine base and a process for producing the same. In particular, the processes of the present invention comprises using a halogenated pyrazolopyrimidine base and removing the halogen after the base is coupled to a sugar moiety. The presence of the halogen on the nucleoside base allows facile and economical production of a large quantity of nucleosides.