| abstract |
Quinolone carboxylic acid derivatives of formula (I) wherein Ar is an optionally substituted phenyl, pyridyl, or pyrimidinyl group and the substituent groups R1, R4, R10, R11, R19, and R20 are as defined in the specification, pharmaceutical compositions containing them, and methods of using them in treatment of hyperproliferative diseases such as cancer are disclosed and claimed. |