PROBLEM TO BE SOLVED: To provide a method for producing a novel group of phosphorus compounds effective for treating cancer and other diseases. A method for producing a compound represented by the following figure. The compound is a therapeutic agent for non-small cell lung cancer and is an ALK inhibitor. [Selection diagram] None【課題】ガン及び他の疾患の治療に有効な新規な群のリン化合物の製造方法の提供。【解決手段】下図で表される化合物の製造方法。前記化合物は、非小細胞性肺癌の治療薬であり、ALK阻害薬である。【選択図】なし