anti-Tuberculosis natural products: synthesis and biological evaluation of pyridoacridine alkaloids related to ascididemin
作者:David R. Appleton、A. Norrie Pearce、Brent R. Copp
DOI:10.1016/j.tet.2010.05.033
日期:2010.7
novel therapeutics possessing new modes of action to treat tuberculosis (TB) infections. In this study we report on the synthesis and biological evaluation of a series of pyrido[2,3,4-kl]acridin-6-one alkaloids related to the anti-TB (MIC 0.35 μM) but cytotoxic (IC50 <0.14 μM) marine natural product ascididemin (1). The most interesting compounds identified were 21 and 24, which were found to inhibit
迫切需要具有新的作用方式以治疗结核病(TB)感染的新型疗法。在这项研究中,我们报告了一系列与抗-TB(MIC 0.35μM)但具有细胞毒性(IC 50 < 0.14μM)相关的吡啶并[2,3,4- kl ] acridin-6-one生物碱的合成和生物学评估。)海洋天然产物ascididemin(1)。鉴定出的最有趣的化合物为21和24,发现它们以MIC 2.0μM抑制结核分枝杆菌(Mtb)H 37 Rv的生长,但对Vero和P388细胞的细胞毒性却微不足道(IC 50 > 25μM)。另一个类似物(10)针对一系列Mtb的单药耐药菌株进行了评估),发现没有交叉耐药性。这些结果表明,吡啶并[2,3,4- KL ]吖-6-一个骨架可以提供针对未来可能的研究有用的支架抗-TB药物。