Proisocrinins A-F, brominated anthraquinone pigments from the stalked crinoid Proisocrinus ruberrimus.
Proisocrinins A-F, brominated anthraquinone pigments from the stalked crinoid Proisocrinus ruberrimus.
复制标题
Proisocrinins A-F，来自有柄海百合 Proisocrinus ruberrimus 的溴化蒽醌颜料。
作者：
K. Wolkenstein;W. Schoefberger;N. Müller;T. Oji
从采集于日本冲绳海槽深海中的鲜红色海百合中分离得到一种新的溴化蒽醌类化合物--原异海百合素A-F（1-6）。化合物的结构经高分辨质谱（HRMS）、1D ~ 1H和~（13）C NMR、2D NMR等波谱分析确证。CD光谱显示，所有化合物均以光学活性对映体存在。这是首次报道的三溴和四溴蒽醌从天然来源。
New brominated anthraquinone pigments, proisocrinins A-F (1-6), were isolated from the strikingly scarlet-colored stalked crinoid Proisocrinus ruberrimus, which had been collected in the deep sea of the Okinawa Trough, Japan. The structures of the compounds were elucidated by spectroscopic analysis including HRMS, 1D 1H and 13C NMR, and 2D NMR. CD spectroscopy revealed that all compounds are present as optically active enantiomers. This is the first report of tribromo and tetrabromo anthraquinones from a natural source.