title: Synthesis of caffeic acid amides bearing 2,3,4,5-tetra-hydrobenzo[b][1,4]dioxocine moieties and their biological evaluation as antitumor agents.
abstract: A series of caffeic acid amides D1-D17 bearing 2,3,4,5-tetrahydrobenzo-[b][1,4]dioxocine units has been synthesized and their biological activities evaluated for potential antiproliferative and EGFR inhibitory activity. Of all the compounds studied, compound D9 showed the most potent inhibitory activity (IC50=0.79 μM for HepG2 and IC50=0.36 μM for EGFR). The structures of compounds were confirmed by 1H-NMR, ESI-MS and elemental analysis. Among all, the structure of compound D9 ((E)-N-(4-ethoxyphenyl)-3-(2,3,4,5-tetrahydrobenzo[b][1,4]dioxocin-8-yl)acrylamide) was also determined by single-crystal X-ray diffraction analysis. Compound D9 was found to be a potential antitumor agent according to biological activity, molecular docking, apoptosis assay and inhibition of HepG2.
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
authors.forename: Ji-Wen
authors.initials: JW
authors.lastname: Yuan
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
authors.forename: Han-Yue
authors.initials: HY
authors.lastname: Qiu
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
authors.forename: Peng-Fei
authors.initials: PF
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
authors.forename: Jigar A
authors.initials: JA
authors.lastname: Makawana
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
authors.forename: Yong-An
authors.initials: YA
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Yin
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Lin
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China.
authors.forename: Zhong-Chang
authors.initials: ZC
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China. zhuhl@nju.edu.cn.
authors.forename: Hai-Liang
authors.initials: HL
authors.lastname: Zhu
mesh_terms: D000577:Amides / Q000737:chemistry*; D000970:Antineoplastic Agents / Q000737:chemistry* / Q000494:pharmacology*; D002109:Caffeic Acids / Q000737:chemistry*; D002465:Cell Movement / Q000187:drug effects; D004354:Drug Screening Assays, Antitumor; D066246:ErbB Receptors / Q000378:metabolism; D056945:Hep G2 Cells; D006801:Humans; D015394:Molecular Structure; D013329:Structure-Activity Relationship; D014961:X-Ray Diffraction
chemical_list: D000577:Amides; D000970:Antineoplastic Agents; D002109:Caffeic Acids; C512478:EGFR protein, human; D066246:ErbB Receptors; C040048:caffeic acid