Diepoxin-η (1) is a cytotoxic fungal metabolite belonging to the spirobisnaphthalene structural class. In this study, four monofluorinated analogues (2–5) of diepoxin-η (1) were semisynthesized in a single-step by selectively fluorinating the naphthalene moiety with Selectfluor. The structures of 2–5 were elucidated using a set of spectroscopic and spectrometric techniques and were further confirmed
Diepoxin-η ( 1 ) 是一种细胞毒性真菌代谢物,属于螺双
萘结构类别。在这项研究中,通过用 Sel
ECtflu 选择性
氟化
萘部分,一步半合成了二恶英-η ( 1 ) 的四种单
氟化类似物 ( 2 – 5 )。使用一套光谱和光谱技术阐明了2 – 5的结构,并通过TDDFT-
ECD和各向同性屏蔽张量计算进一步证实。当针对 O
VCAR3(卵巢)和
MDA-MB-435(
黑色素瘤)癌
细胞系进行测试时,化合物2 – 5显示出与1等效的细胞毒活性,IC 50值范围为 5.7 至 8.2 µM。