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. 25, 2008
Filed:
Apr. 27, 2005
Akihiro Imura, Edogawa-Ku, JP;
Tatsuya Yamaguchi, Edogawa-Ku, JP;
Yoshihiro Takayanagi, Edogawa-Ku, JP;
Seishiro Uchida, Edogawa-Ku, JP;
Akihiro Imura, Edogawa-Ku, JP;
Tatsuya Yamaguchi, Edogawa-Ku, JP;
Yoshihiro Takayanagi, Edogawa-Ku, JP;
Seishiro Uchida, Edogawa-Ku, JP;
Daiichi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
Taxan derivatives are produced efficiently and inexpensively, which are useful as oral-administrable antitumor compounds. A compound of formula (1) (wherein Ris an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group or a heterocyclic group; Ris a hydroxyl group optionally having a protective group) is processed with an alkali metal permanganate to produce a compound of formula (2), which may be a starting material for oral-administrable antitumor compounds.