The present invention provides compounds for modulating receptor kinase
activity, particularly ephrin and EGFR, and methods of treating diseases
mediated by receptor kinase activity utilizing the compounds and
pharmaceutical compositions thereof. Diseases mediated by receptor kinase
activity include, but are not limited to, diseases characterized in part
by abnormal levels of cell proliferation (i.e. tumor growth), programmed
cell death (apoptosis), cell migration and invasion and angiogenesis
associated with tumor growth. Compounds of the invention include
"spectrum selective" kinase modulators, compounds that inhibit, regulate
and/or modulate signal transduction across subfamilies of receptor-type
tyrosine kinases, including ephrin and EGFR.