Extended Aromatic and Heteroaromatic Ring Systems in the Chalcone–Flavanone Molecular Switch Scaffold
作者:Brian M. Muller、Theodore J. Litberg、Reid A. Yocum、Chanté A. Pniewski、Marc J. Adler
DOI:10.1021/acs.joc.6b00986
日期:2016.7.1
substitutions alter the pH range in which rapid interconversion occurs. Herein, more impactful structural modifications were performed via alteration of the characteristic phenyl rings to alternative aromaticsystems. It was determined that the scaffold was still viable after these changes and that the range of accessible midpoint pH values was markedly increased. To further explore the switch’s scope, scaffolds
Briggs, Malcolm T.; Duncan, Graham L. S.; Thornber, Craig W., Journal of Chemical Research, Miniprint, 1982, # 9, p. 2461 - 2487
作者:Briggs, Malcolm T.、Duncan, Graham L. S.、Thornber, Craig W.
DOI:——
日期:——
Synthesis and Biological Evaluation of (Thiophene-2-yl)-4H-Chromen-7-yl-Sulfonate Derivatives
作者:Zhen Lv、Jialin Zang、Yushuang Xing、Jifang Yang、Ming Bu
DOI:10.1134/s1068162021050368
日期:2021.9
the significant biological activity of our previously screened natural 4H-chromen, a series of novel (Thiophen-2-yl)-4H-chromen-7-yl-sulfonate derivatives (Va–Vi) were synthesized and investigated for their in vitro free radical scavenging potential as well as cytotoxic efficacies against selected cancer cell lines. The cytotoxicity of the 4H-chromen derivatives (Va–Vi) was evaluated according to three
摘要 受我们先前筛选的天然 4 H-色烯显着生物活性的启发,合成了一系列新型 (Thiophen-2-yl)-4 H-色烯-7-基-磺酸盐衍生物 ( Va – Vi ) 并对其进行了研究。体外自由基清除能力以及对选定癌细胞系的细胞毒性作用。根据三种人类癌细胞系(HepG2、A549、HeLa),通过使用 MTT 测定来评估4 H-色烯衍生物 ( Va – Vi )的细胞毒性。因此,部分结果显示出比阳性对照(7-羟基-2-苯基-4 H -chromen-4-one, 4H -chromen-4-one 和芹菜素)。其中,化合物(Vc – Ve)对三种人类癌细胞系的阳性对照表现出更好的训练(IC 50 = 10.52 ± 0.39 μM 至 15.29 ± 0.35 μM)。此外,4 H-色烯衍生物 ( Va – Vi )的提取物对 2,2-diphenyl-1-picrylhydrazyl (DPPH)