Novel compounds selected from 2-(3-aminoaryl)amino-4-aryl-thiazoles of formula (I) that selectively modulate, regulate, and/or inhibit signal transductions mediated by certain native and/or mutant tyrosine kinases implicated in a variety of human and animal diseases such as cell proliferation metabolic, allergic and degenerative disorders. More particularly, these compounds are potent and selective c-kit inhibitors.