The present invention relates to a compound of the Formula I or a pharmaceutically acceptable salt thereof, wherein R1, R2, R3A, R3B, R4, R5, X, m, and n are as defined herein. Such novel benzamidazole derivatives are useful in the treatment of abnormal cell growth, such as cancer, in mammals. This invention also relates to a method of using such compounds in the treatment of abnormal cell growth in mammals, especially humans, and to pharmaceutical compositions containing such compounds.本發明係關於式I化合物或其藥學上可接受之鹽,其中R1, R2, R3A, R3B, R4, R5, X, m及n均如本文定義。此種新穎苯并咪唑衍生物可在哺乳動物中用於治療異常細胞生長,譬如癌症。本發明亦關於在哺乳動物,尤其是人類中使用此種化合物以治療異常細胞生長之方法,及含有此種化合物之醫藥組合物。