PROBLEM TO BE SOLVED: To identify a novel analogue of carba cyclic phosphatidic acid, which is a cyclic phosphatidic acid derivative, and to clarify its physiological activity. A compound represented by the following formula (1): [Chemical 1] (In the formula, R is a linear or branched alkyl group having 1 to 30 carbon atoms, a linear or branched alkenyl group having 2 to 30 carbon atoms, or a linear or branched alkyl group having 2 to 30 carbon atoms. An alkynyl group, which may contain a cycloalkane ring or an aromatic ring, and M is a hydrogen atom or a counter cation.) [Selection diagram] None【課題】環状ホスファチジン酸誘導体であるカルバ環状ホスファチジン酸の新規な類縁体を同定し、その生理活性を明らかにすること。【解決手段】下記式（１）で示される化合物。【化１】（式中、Ｒは、炭素数１～３０の直鎖状若しくは分岐状アルキル基、炭素数２～３０の直鎖状若しくは分岐状アルケニル基、又は炭素数２～３０の直鎖状若しくは分岐状アルキニル基であり、これらの基はシクロアルカン環又は芳香環を含んでいてもよい。Ｍは、水素原子又は対カチオンである。）【選択図】なし
