📜2-羟基-3-萘甲酸置于氯化亚砜体系中,用 四氢呋喃 作为反应溶剂,化学反应 2.0H,反应生成 色酚as-Rl
参考文献:Structure-activity Relationship Studies Of Naphthol As-E And Its Derivatives As Anticancer Agents By Inhibiting Creb-Mediated Gene Transcription
标题:Structure-activity Relationship Studies Of Naphthol As-E And Its Derivatives As Anticancer Agents By Inhibiting Creb-Mediated Gene Transcription
摘要:Creb (Cyclic Amp-Response Element Binding Protein) Is A Downstream Transcription Factor Of A Multitude Of Signaling Pathways Emanating From Receptor Tyrosine Kinases Or G-Protein Coupled Receptors. Creb Is Not Activated Until It Is Phosphorylated At Ser133 And Its Subsequent Binding To Creb-Binding Protein (Cbp) Through Kinase-Inducible Domain (Kid) In Creb And Kid-Interacting (Kix) Domain In Cbp. Tumor Tissues From Various Organs Present Higher Level Of Expression And Activation Of Creb. Thus Creb Has Been Proposed As A Promising Cancer Drug Target. We Previously Described Naphthol As-E (1A) As A Small Molecule Inhibitor Of Creb-Mediated Gene Transcription In Living Cells. Here We Report The Structure-Activity Relationship (Sar) Studies Of La By Modifying The Appendant Phenyl Ring. All The Compounds Were Evaluated For In Vitro Inhibition Of Kix-Kid Interaction,Cellular Inhibition Of Creb-Mediated Gene Transcription And Inhibition Of Proliferation Of Four Cancer Cell Lines (A549,Mcf-7,Mda-Mb-231 And Mda-Mb-468). Sar Indicated That A Small And Electron-Withdrawing Group Was Preferred At The Para-Position For Kix-Kid Interaction Inhibition. Compound La Was Selected For Further Biological Characterization And It Was Found That La Down-Regulated The Expression Of Endogenous Creb Target Genes. Expression Of A Constitutively Active Creb Mutant,Vp16-Creb In Mcf-7 Cells Rendered The Cells Resistant To La,Suggesting That Creb Was Critical In Mediating Its Anticancer Activity. Furthermore,La Was Not Toxic To Normal Human Cells. Collectively,These Data Support That La Represents A Structural Template For Further Development Into Potential Cancer Therapeutics With A Novel Mechanism Of Action. (C) 2012 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Bmc.2012.09.056