Circumdatin-Aspyrone Conjugates from the Coral-Associated Aspergillus ochraceus LCJ11-102
作者:Yaqin Fan、Yalin Zhou、Yuqi Du、Yi Wang、Peng Fu、Weiming Zhu
DOI:10.3390/md17070400
日期:——
from a nucleophilic addition of 2-hydroxycircumdatin C (5) to aspyrone (6). New compound 1 exhibited cytotoxic activity against 10 human cancer cell lines while new compounds 2 and 4 selectively inhibited U251 (human glioblastoma cell line) and compound 3 was active against A673 (human rhabdomyoma cell line), U87 (human glioblastoma cell line), and Hep3B (human liver cancer cell line) with IC50 (half
从与珊瑚相关的曲霉菌株LCJ11-102的发酵液中分离出了奥卓拉平AD(1-4),这是通过亲核加成环氧化物从2-羟基环丁二烯C(5)和阿斯匹隆(6)二聚而成的四个新缀合物。基于光谱分析和化学方法确定了它们的结构,包括绝对构型。化合物1-4也可以通过半合成从2-羟基环糊精C(5)的亲核加成反应中获得。新化合物1对10种人类癌细胞系表现出细胞毒活性,而新化合物2和4选择性抑制U251(人类胶质母细胞瘤细胞系),化合物3对A673(人类横纹肌瘤细胞系),U87(人类胶质母细胞瘤细胞系)具有活性,