Present invention provides compounds that cause specifically the degradation of EGFR via the targeted ubiquitination of EGFR protein and subsequent proteasomal degradation. The present compounds are useful for the treatment of various cancers.本發明提供經由EGFR蛋白之靶向泛素化及隨後蛋白酶體降解特異性地引起EGFR降解的化合物。本發明化合物可用於治療各種癌症。