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:
Feb. 08, 2011
Filed:
Apr. 21, 2010
Regina Mikie Kanada, Tsukuba, JP;
Daisuke Ito, Tsukuba, JP;
Takashi Sakai, Tsukuba, JP;
Naoki Asai, Tsukuba, JP;
Yoshihiko Kotake, Tsukuba, JP;
Jun Niijima, Tsukuba, JP;
Regina Mikie Kanada, Tsukuba, JP;
Daisuke Ito, Tsukuba, JP;
Takashi Sakai, Tsukuba, JP;
Naoki Asai, Tsukuba, JP;
Yoshihiko Kotake, Tsukuba, JP;
Jun Niijima, Tsukuba, JP;
Eisai R&D Management Co., Ltd., Tokyo, JP;
Abstract
Process for producing compound of Formula: wherein P, Pand Rare the same as defined below, characterized by comprising reacting a compound represented by Formula (7): wherein Pmeans a protecting group for hydroxy group; and Het means a 1-phenyl-1H-tetrazol-5-yl group, with a compound represented by Formula (8): wherein Pmeans a protecting group for hydroxy group; and Rmeans a phenyl group which may be substituted, in the presence of a base.