Quinoline derivatives and their use as aurora 2 kinase...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C514S255060, C514S275000, C544S322000, C544S331000, C544S405000

Reexamination Certificate

active

06977259

ABSTRACT:
A compound of formula (I)or a salt, ester, amide or prodrug thereof; R5is an optionally substituted 6-membered aromatic ring containing at least one nitrogen atom, and R1, R2, R3, R4are independently selected from halogeno, cyano, nitro, C1-3alkylsulphonyl, —N(OH)R7— (wherein R7is hydrogen, or C1-3alkyl), or R9X1— (wherein X1represents a direct bond, —O—, —CH2—, —OC(O)—, —C(O)—, —S—, —SO—, —SO2—, —NR10C(O)—, —C(O)NR11—, —SO2NR12—, —NR13SO2— or —NR14— (wherein R10, R11, R12, R13and R14each independently represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl), and R9is hydrogen, optionally substituted hydrocarbyl, optionally substituted heterocyclyl or optionally substituted alkoxy); provided that at least one of R2or R3is other than hydrogen. These compounds are inhibitors of aurora 2 kinase. Thus they, and pharmaceutical compositions containing them, are useful in methods of treatment of proliferative disease such as cancer and in particular cancers such as colorectal or breast cancer where aurora 2 is upregulated.

REFERENCES:
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