Indirubin derivative having highly selective cytotoxicity for malignant tumors

US9051306B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9051306-B2
Application numberUS-201214232836-A
CountryUS
Kind codeB2
Filing dateJul 5, 2012
Priority dateJul 15, 2011
Publication dateJun 9, 2015
Grant dateJun 9, 2015

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  5. First independent claim

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Abstract

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An agent for treating malignant tumors based on a new mechanism is provided, which comprises an indirubin derivative represented by formula (1) or a salt thereof: wherein A represents an alkylene group having 1 to 4 carbon atoms, and R 1 to R 4 each independently represent a hydrogen atom, a halogen atom, a hydroxy group, or an alkoxy group.

First claim

Opening claim text (preview).

The invention claimed is: 1. An indirubin derivative of formula (1) or a salt thereof: wherein A is an alkylene group having 1 to 4 carbon atoms, and R 1 to R 4 are each independently a hydrogen atom, a halogen atom, a hydroxy group, or an alkoxy group. 2. The indirubin derivative or a salt thereof according to claim 1 , wherein A is a methylene g…

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What does patent US9051306B2 cover?
An agent for treating malignant tumors based on a new mechanism is provided, which comprises an indirubin derivative represented by formula (1) or a salt thereof: wherein A represents an alkylene group having 1 to 4 carbon atoms, and R 1 to R 4 each independently represent a hydrogen atom, a halogen atom, a hydroxy group, or an alkoxy group.
Who is the assignee on this patent?
Suzuki Takashi, Miyairi Shinichi, Saito Hiroaki, and 2 more
What technology area does this patent fall under?
Primary CPC classification C07D405/14. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jun 09 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).