PROBLEM TO BE SOLVED: To provide a novel resveratrol derivative having angiotensin converting enzyme inhibitory activity.SOLUTION: The novel resveratrol derivative is represented by formula (1). An angiotensin converting enzyme inhibitory agent containing the novel resveratrol derivative or its pharmaceutically acceptable salt, ester or ether is also provided.COPYRIGHT: (C)2012,JPO&INPIT【課題】アンジオテンシン変換酵素阻害活性を有する新規レスベラトロール誘導体を提供する。【解決手段】式(1)で示される新規レスベラトロール誘導体。【選択図】なし