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.:

US 8058261 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 15, 2011

Filed:

Jul. 23, 2007
Applicants:

Motoaki Tanaka, Chiyoda-ku, JP;

Masakazu Fukushima, Tokushima, JP;

Inventors:

Motoaki Tanaka, Chiyoda-ku, JP;

Masakazu Fukushima, Tokushima, JP;

Assignees:

Taiho Pharmaceutical Co., Ltd., Tokyo, JP;

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N 43/04 (2006.01); A61K 31/70 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a compound which exhibits excellent anti-tumor activity and excellent oral absorption and which is a useful anti-tumor drug. The invention provides a 3'-ethynylcytidine derivative represented by formula (1): (wherein X represents a (substituted) alkylcarbonyl group, a (substituted) alkoxycarbonyl group, or a hydrogen atom; one of Y and Z represents a hydrogen atom or a group represented by (R)(R)(R)Si— and the other represents a group represented by (R)(R)(R)Si—; and R, R, R, R, R, and Reach represent a (substituted) alkyl group, a (substituted) cyclic alkyl group, or a (substituted) aryl group) or a salt thereof.


Find Patent Forward Citations

Tanaka, Motoaki. (2011). 3'-ethynylcytidine derivative (U.S. Patent No. 8058261). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8058261

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