引用本文:[点击复制]
[点击复制]
【打印本页】 【在线阅读全文】【下载PDF全文】 查看/发表评论下载PDF阅读器关闭

←前一篇|后一篇→

过刊浏览    高级检索

本文已被:浏览 737次   下载 336 本文二维码信息
码上扫一扫!
一种新型开环烯二炔的设计、合成及细胞毒性研究
黄帅,李竞,李保君,胡爱国
0
(华东理工大学材料科学与工程学院, 上海市先进聚合物材料重点实验室, 上海 200237)
摘要:
通过Sonogashira反应合成了一种以马来酰亚胺为主体结构,炔基带有两个对称烷基链的烯二炔化合物。该烯二炔在适度加热的情况下能够发生Bergman环化反应,产生芳基双自由基。通过红外光谱分析确认反应后碳碳叁键信号峰消失;利用自由基捕捉技术获得了单N-叔丁基-α-苯基硝酮(PBN)加成产物和双PBN加成产物,并通过电子顺磁共振波谱检测到了这两种PBN加合物的自由基信号,说明烯二炔发生了Bergman环化反应。MTT法细胞活性实验证实该小分子烯二炔对肿瘤细胞的半抑制浓度在18 μmol/L左右,显示出烯二炔对肿瘤细胞具有良好的抗增殖能力。这为以后设计合成高活性的开环型烯二炔抗生素提供了新的思路。
关键词:  烯二炔  Bergman环化  抗肿瘤抗生素  细胞毒性
DOI:10.14135/j.cnki.1006-3080.2017.01.001
投稿时间:2016-04-19
基金项目:国家自然科学基金项目(21474027)
Design, Synthesis and Cytotoxicity Study of a Novel Acyclic Enediyne
HUANG Shuai,LI Jing,LI Bao-jun,HU Ai-guo
(Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China)
Abstract:
An acyclic enediyne with maleimide as the main structure and two symmetrical alkynyl chains was synthesized through Sonogashira coupling reaction.The enediyne was subjected to thermal Bergman cyclization to yield diradical intermediates.FT-IR results showed the complete conversion of the alkynyl moiety.The diradical intermediates could be further trapped by a spin trap (PBN) to generate mono-and di-PBN adducts corroborating the occurrence of the Bergman cyclization,which was confirmed by EPR analysis.MTT cell activity experiments confirmed that the half inhibitory concentration of this small molecular enediyne on tumor cell was around 18 μmol/L which were stable enough for long-time storage and active enough to suppress the cell multiplication for potential clinical application.
Key words:  enediyne  Bergman cyclization  antibiotics  cytotoxicity

用微信扫一扫

用微信扫一扫