The present invention relates to compounds: and pharmaceutically acceptable salts thereof. The compounds have been demonstrated as inhibitors of MEK and therefore may be useful in the treatment of hyperproliferative diseases like cancer and inflammation.本發明係關於以下化合物,及其醫藥上可接受之鹽。已證實該等化合物為MEK抑制劑且因此可用於治療諸如癌症及炎症等過度增殖性疾病。