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:
Aug. 26, 2014
Filed:
Mar. 04, 2011
Keisuke Yamamoto, Shizuoka, JP;
Seiji Aratake, Shizuoka, JP;
Kazuki Hemmi, Tokyo, JP;
Kyowa Hakko Kirin Co., Ltd., Tokyo, JP;
Abstract
The invention provides a pyrazolopyrimidine derivative of formula (I), wherein, for example, Rrepresents —NRR(wherein Rand Rare the same or different and each is a hydrogen atom or aralkyl), Rrepresents formula (Ya) [wherein k and m each represents an integer of 0-2, n represents an integer of 0-4, L represents a single bond, Rrepresents halogen, Rrepresents aryl, X represents —CR(wherein Rrepresents a hydrogen atom), and Rrepresents a hydrogen], Rrepresents —SOR[wherein Rrepresents lower alkoxy, —NRC(═O)R(wherein Rrepresents a hydrogen atom, and Rrepresents lower alkyl)], and Rrepresents a hydrogen atom, or a pharmaceutically acceptable salt thereof. The invention also provides a medicament containing the pyrazolopyrimidine derivative, as well as a method of using the pyrazolopyrimidine derivative to prevent and/or treat skin diseases.