Potent Antifouling Resorcylic Acid Lactones from the Gorgonian-Derived Fungus <i>Cochliobolus lunatus</i>
作者:Chang-Lun Shao、Hui-Xian Wu、Chang-Yun Wang、Qing-Ai Liu、Ying Xu、Mei-Yan Wei、Pei-Yuan Qian、Yu-Cheng Gu、Cai-Juan Zheng、Zhi-Gang She、Yong-Cheng Lin
DOI:10.1021/np100641b
日期:2011.4.25
Three new 14-membered resorcylic acid lactones, two with a rare natural acetonide group and one with a 5-chloro-substituted lactone, named cochliomycins A−C (1−3), together with four known analogues, zeaenol (4), LL-Z1640-1 (5), LL-Z1640-2 (6), and paecilomycin F (7), were isolated from the culture broth of Cochliobolus lunatus, a fungus obtained from the gorgonian Dichotella gemmacea collected in
三个新的14元二羟基苯甲酸内酯,二有稀有天然丙酮化合物基团和一个具有5-氯取代的内酯,名为cochliomycins A-C(1 - 3),具有四个已知类似物,zeaenol(一起4),LL -Z1640-1(5),LL-Z1640-2(6)和青霉素F(7)是从Cochliobolus lunatus的培养液中分离得到的。Cochlioboluslunatus是一种真菌,是从在南中国海收集的戈贡Dichotella gemmacea中获得的。它们的结构和的相对构型1 - 3使用全面的光谱方法(包括NOESY光谱和化学转化)进行了阐明。还观察到了跨醚化反应,其中在室温下,CDCl 3溶液中的缓蚀霉素B(2)缓慢重排,得到缓蚀霉素A(1)。评估了这些间苯二酸内酯对藤壶Balanus amphitrite的幼虫沉降的影响,并且首次检测到此类代谢产物的防污活性。还检查了这些化合物的抗菌和细胞毒性活性。