PROBLEM TO BE SOLVED: To provide a urea derivative compound which maintains and improves affinity to a prostate-specific membrane antigen (PSMA) while having a fluorine group.SOLUTION: There are provided an urea derivative compound represented by the following formula (1): (where, m represents 0 or 1 n represents an integer of 1 to 4 R represents a hydrogen atom or a carboxyl group F represents a nonradioactive fluorine or a radioactive fluorine) a salt thereof and a radiopharmaceutical containing the compound and the salt thereof (provided that in the formula (1), F represents a radioactive fluorine).【課題】フッ素基を有しつつ、前立腺特異的膜抗原(PSMA)への親和性が維持又は向上された、ウレア誘導体化合物を提供する。【解決手段】下記式(1):【化1】(式(1)中、mは0又は1、nは1~4の整数、Rは水素又はカルボキシル基、Fは非放射性フッ素又は放射性フッ素を示す。)で表わされるウレア誘導体化合物又はその塩、及び、上記化合物又はその塩(但し、式(1)中、Fは放射性フッ素)を含有する、放射性医薬。【選択図】なし
