Structure–Activity Relationship Study on Odoamide: Insights into the Bioactivities of Aurilide-Family Hybrid Peptide–Polyketides
作者:Masato Kaneda、Shinsaku Kawaguchi、Nobutaka Fujii、Hiroaki Ohno、Shinya Oishi
DOI:10.1021/acsmedchemlett.8b00028
日期:2018.4.12
relationship study of the peptide part of odoamide, a facile synthetic protocol was established using a solid-phase peptide synthesis. Among a series of peptides, the d-MeAla6 isomer exhibited a more potent cytotoxicity than natural odoamide. It was also demonstrated that the 26-membered macrocyclic natural odoamide and the 24-membered isomer with comparable cytotoxicities were slowly interconvertible, and both
Odoamide是从冲绳海洋蓝藻Okeania sp。中分离出来的一种细胞毒性肽-聚酮化合物杂合分子。为了有效地研究odoamide肽部分的结构-活性关系,使用固相肽合成方法建立了一种简便的合成方案。在一系列肽中,d-MeAla6异构体比天然的odamide具有更强的细胞毒性。还证明了具有可比的细胞毒性的26元大环天然邻酰胺和24元异构体可缓慢互变,并且这两种异构体均对odoamide具有强的细胞毒性。理化性质的检查表明,体外细胞毒性受odoamide衍生物的血清蛋白结合的影响,而大环结构的差异对膜的通透性没有显着影响。