Four new butenolides (1a-d) were isolated from the Japanese gorgonian Euplexaura flava (Nutting). The structures of these compounds were elucidated on the basis of spectral data and chemical reactions.
从日本藻类 Euplexaura flava(Nutting)中分离出了四种新的
丁烯内酯(1a-d)。根据光谱数据和
化学反应阐明了这些化合物的结构。