abstract |
Compounds having formula (I), as defined herein, R 1 , R 2 , R 3 and Ar are inhibitors of ERK kinase. Compositions and methods for treating hyperproliferative disorders are also disclosed. The present invention relates to compounds useful for treating hyperproliferative and neoplastic diseases by inhibiting serine / threonine kinases and inhibiting signal transduction pathways that are generally over-active or over-expressed in cancer tissues. The compounds of the present invention are selective inhibitors of ERK (extracellular signal-regulated kinase). The invention further relates to a method of treating cancer or hyperproliferative diseases with compounds within the scope of the invention. |