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. 14, 2010
Filed:
Mar. 13, 2007
Kazuya Tatani, Nagano, JP;
Yoshinori Nonaka, Nagano, JP;
Norihiko Kikuchi, Nagano, JP;
Kissei Pharmaceutical Co., Ltd., Nagano, JP;
Abstract
The present invention provides an 8-modified purinenucleoside derivative which is useful for diseases associated with an abnormality of plasma uric acid level. An 8-modified purinenucleoside derivative represented by the following formula (I), a prodrug thereof or a pharmaceutically acceptable salt thereof, or a hydrate or solvate thereof, is useful for the prevention or treatment of gout, hyperuricemia, urinary lithiasis, hyperuricemic nephropathy or the like. In the formula, n is 1 or 2; Ris a hydrogen atom or a hydroxyl group; Ris a hydrogen atom, a hydroxyl group, a thiol group, an amino group or a chlorine atom; ring J represents an optionally substituted 2-naphthyl group, or a group represented by the following general formula (II) wherein Y represents a single bond or a connecting group; ring Z represents an optionally substituted aryl group or heteroaryl group or the like; and Rto R, Pand Q represents a halogen atom, a cyano group or the like.