The present invention relates to certain benzimidazole compounds, or pharmaceutically acceptable salts thereof, that inhibit Janus kinase 1 (JAK1), pharmaceutical compositions comprising the compounds, and methods of using the compounds to treat certain types of cancer.本發明係關於抑制Janus激酶1(JAK1)之某些苯并咪唑化合物或其醫藥學上可接受之鹽、包含該等化合物之醫藥組合物,以及使用該等化合物治療某些類型癌症的方法。