Four new butenolides (1a–d) were isolated from the Japanese gorgonian Euplexaura flava(Nutting). The structures of these compounds were elucidated from spectral data and chemical reactions.
从日本柳珊瑚 Euplexaura flava (Nutting) 中分离出四种新的
丁烯内酯 (1a-d)。通过光谱数据和
化学反应阐明了这些化合物的结构。