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Chemical Diversity from a Chinese Marine Red Alga, Symphyocladia latiuscula

机译:中国海洋红藻Symphyocladia latiuscula的化学多样性

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This study describes an investigation into secondary metabolites that are produced by a marine red alga, Symphyocladia latiuscula , which was collected from coastal waters off Qingdao, China. A combination of normal, reversed phase, and gel chromatography was used to isolate six citric acid derived natural products, aconitates A?¢????F ( 1 ?¢???? 6 ), together with two known and ten new polybrominated phenols, symphyocladins C/D ( 7a/b ), and symphyocladins H?¢????Q ( 8a/b , 9a/b and 10 ?¢???? 15 ), respectively. Structure elucidation was achieved by detailed spectroscopic (including X-ray crystallographic) analysis. We propose a plausible and convergent biosynthetic pathway involving a key quinone methide intermediate, linking aconitates and symphyocladins.
机译:这项研究描述了对海洋红藻Symphyocladia latiuscula产生的次级代谢产物的研究,该藻是从中国青岛沿海的海域收集的。将正相,反相和凝胶色谱法结合使用可分离出六种柠檬酸衍生的天然产物,乌头草酸A ???????? F(1 ???????? 6),以及两个已知的和十个新的多溴代苯酚,Symphyocladins C / D(7a / b)和SymphyocladinsHα-β-Q(8a / b,9a / b和10-α-β15)分别。通过详细的光谱学(包括X射线晶体学)分析实现了结构阐明。我们提出了一个可行的和收敛的生物合成途径,其中涉及关键的醌甲基化物中间体,连接乌头酸盐和共生蛋白。

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