Asymmetric Total Synthesis and Evaluation of Antitumor Activity of Ophiorrhisine A and Its Derivatives
作者:Tadayoshi Onozawa、Mariko Kitajima、Noriyuki Kogure、Hiromitsu Takayama
DOI:10.1021/acs.joc.8b02554
日期:2018.12.21
The first asymmetric total synthesis of ophiorrhisine A (1), a new cyclic tetrapeptide isolated from Ophiorrhiza nutans, was accomplished via an intramolecular aromatic nucleophilic substitution reaction (IMSNAr) of a linear tripeptide to construct a 14-membered paracyclophane ring, resulting in confirmation of its structure and absolute configuration. The structure–activity relationship study of 1 and
通过线性三肽的分子内芳族亲核取代反应(IMS N Ar)构建一个14元对环环芳烃,完成了从Ophiorrhiza nutans分离得到的新的环状四肽ophiorrhisine A(1)的首次不对称全合成。确认其结构和绝对配置。1及其衍生物的构效关系研究表明,某些衍生物对人癌细胞系A549,HT29和HCT116具有细胞毒性。