The present disclosure provides a compound having a STING agonistic activity, which may be expected to be useful as an agent for the prophylaxis or treatment of STING-related diseases.The present disclosure relates to a compound represented by the formula (I): wherein each symbol is as defined in the description, or a salt thereof.本發明提供一種具有STING促效活性之化合物,預期該化合物可能適用作預防或治療STING相關疾病之藥劑。本發明係關於一種由式(I)表示之化合物: 其中各符號如發明描述中所定義;或其鹽。由於本案的圖為實驗數據,並非本案的代表圖。故本案無指定代表圖。