Design, synthesis and antitumour and anti-angiogenesis evaluation of 22 moscatilin derivatives
摘要:
Two series of moscatilin derivatives were designed, synthesized and evaluated as anti-tumor and anti-angiogenesis agents. Most of these compounds showed moderate-to-obvious cytotoxicity against five cancer cell lines (A549, HepG2, MDA-MB-231, MKN-45, HCT116). Among these cell lines, compounds had obvious effects on HCT116. Especially for 8Ae, the IC50 was low to 0.25 mu M. 8Ae can inhibit the viability and induce the apoptosis of HCT116 cells but exhibit no cytotoxic activity in noncancerous NCM460 colon cells. 8Ae can also arrest the G2/M cell cycle in HCT116 cells by inhibiting the alpha-tubulin expression. Zebrafish bioassay-guided screen showed the 22 moscatilin derivatives had potent anti-angiogenic activities and compound 8Ae had better activities than positive compound. Molecular docking indicated 8Ae interacted with tubulin at the affinity of -7.2 Kcal/mol. In conclusion, compound 8Ae was a potential antitumor and anti-angiogenesis candidate for further development.
Design, synthesis and antitumour and anti-angiogenesis evaluation of 22 moscatilin derivatives
摘要:
Two series of moscatilin derivatives were designed, synthesized and evaluated as anti-tumor and anti-angiogenesis agents. Most of these compounds showed moderate-to-obvious cytotoxicity against five cancer cell lines (A549, HepG2, MDA-MB-231, MKN-45, HCT116). Among these cell lines, compounds had obvious effects on HCT116. Especially for 8Ae, the IC50 was low to 0.25 mu M. 8Ae can inhibit the viability and induce the apoptosis of HCT116 cells but exhibit no cytotoxic activity in noncancerous NCM460 colon cells. 8Ae can also arrest the G2/M cell cycle in HCT116 cells by inhibiting the alpha-tubulin expression. Zebrafish bioassay-guided screen showed the 22 moscatilin derivatives had potent anti-angiogenic activities and compound 8Ae had better activities than positive compound. Molecular docking indicated 8Ae interacted with tubulin at the affinity of -7.2 Kcal/mol. In conclusion, compound 8Ae was a potential antitumor and anti-angiogenesis candidate for further development.
Borane‐Catalyzed Chemoselective and Enantioselective Reduction of 2‐Vinyl‐Substituted Pyridines
作者:Jun‐Jie Tian、Zhao‐Ying Yang、Xin‐Shen Liang、Ning Liu、Chen‐Yu Hu、Xian‐Shuang Tu、Xiang Li、Xiao‐Chen Wang
DOI:10.1002/anie.202007352
日期:2020.10.12
Herein, we report that highly chemoselective and enantioselectivereduction of 2‐vinyl‐substituted pyridines has been achieved for the first time. The reaction, which uses chiral spiro‐bicyclic bisboranes as catalysts and HBpin and an acidic amide as reducing reagents, proceeds through a cascade process involving 1,4‐hydroboration followed by transfer hydrogenation of a dihydropyridine intermediate
Highly regioselective and stereoselective photodimerization of azine-containing stilbenes in neat condition: An efficient synthesis of novel cyclobutanes with heterocyclic substituents
作者:Alina E. Saifutiarova、Yuri V. Fedorov、François Maurel、Elena N. Gulakova、Valentina A. Karnoukhova、Olga A. Fedorova
DOI:10.1016/j.jphotochem.2022.113804
日期:2022.5
The corresponding cyclobutane derivatives were synthesized with yields of up to 57%. The efficiency of this photoreaction depends on the nature of the heterocyclic residue and the concentration of heterostilbenes. The mild reaction conditions and the absence of additives facilitate the reaction. This work provides a convenient and gentle method for the preparation of cyclobutanes.
Mechanism of hydride abstraction in the electrocyclic phototransformation of heterostilbene
作者:Alina E. Saifutiarova、Yury V. Fedorov、Elena E. Gulakova、Olga A. Fedorova
DOI:10.1016/j.mencom.2022.05.027
日期:2022.5
A new mechanism of hydrideabstraction in the course of a photochemical electrocyclic reaction of heterostilbene in aqueous solution is reported. The study of electrocyclic transformations of heterostilbenes containing different types of heterocyclic residues revealed that the herein estimated mechanism of hydrideabstraction is common for heterostilbene photochemical electrocyclization through the
报道了异茋在水溶液中的光化学电环反应过程中夺取氢化物的新机理。对含有不同类型杂环残基的杂茋的电环转化的研究表明,本文估计的氢化物提取机制对于通过形成新的 C N 键的杂茋光化学电环化是常见的。