synthesis of fused chromeno quinolines by the palladium/copper cocatalyzed C–Hbond activation and C–Cbondcleavagereaction has been developed. A variety of fused chromeno quinoline derivatives could be synthesized by coumarin derivatives and anilines through the C–Cbondcleavage/C–H functionalization/C–Cbondformation process. The MTT assay was used to evaluate the chromeno quinolines against