📜碘苷置于bis-Triphenylphosphine-Palladium(II) Chloride,一氯化碘体系中,用 乙腈 作为反应溶剂,化学反应 16.5H,反应生成 溴夫定杂质h 参考文献:Synthesis And Cellular Uptake Of 2'-Substituted Analogues Of (E)-5-(2-[125I]Iodovinyl)-2'-Deoxyuridine In Tumor Cells Transduced With The Herpes Simplex Type-1 Thymidine Kinase Gene. Evaluation As Probes For Monitoring Gene Therapy 标题:Synthesis And Cellular Uptake Of 2'-Substituted Analogues Of (E)-5-(2-[125I]Iodovinyl)-2'-Deoxyuridine In Tumor Cells Transduced With The Herpes Simplex Type-1 Thymidine Kinase Gene. Evaluation As Probes For Monitoring Gene Therapy 摘要:A Useful Synthetic Methodology Was Developed To Synthesize And Radiolabel A Series Of (E)-5-(2-[i-125]Iodovinyl)Uracil Nucleoside Substrates For Herpes Simplex Virus Type-1 Thymidine Kinase (Hsv-1 Tk). (E)-5-(2-[i-125]Iodovinyl)-2'-Deoxyuridine ([i-125]Ivdu,10),(E)-5-(2-[i-125]Iodovinyl)-2'-Fluoro-2'-Deoxyuridine ([i-125]Ivfru,11),(E)-5-(2-[i-125]Iodovinyl)-2'-Fluoro-2'-Deoxyarabinouridine ([i-125]Ivfau,12),And (E)-5-(2-[i-125]Iodovinyl)Arabinouridine ([i-125]Ivau,13) Were Synthesized In 63-83% Radiochemical Yield By Reaction Of The Unprotected (E)-5-(2-(Trimethylsilyl)Vinyl) Precursors (6-9) With [i-125]Icl. Cellular Uptake Of These Labeled Compounds (10-13) Was Evaluated In Vitro. All Compounds Showed Minimal Uptake In The Kbalb Cell Line. However,Increased Uptake Was Observed For All Compounds In Kbalb-Stk Cells Which Are Transduced With A Replication Incompetent Moloney Murine Leukemia Virus Vector Encoding The Hsv-1 Tk Gene. The Results Indicate That Uptake Of These Compounds In Kbalb-Stk Cells Is Variable And Highly Dependent On The Nature Of The Sugar 2'-Substituent. When A Fluoro (12) Or A Hydroxy (13) Substituent Is Present In The Arabinofuranosyl (Up) Configuration At The 2'-Position,There Is Diminished Cellular Uptake In Kbalb-Stk Cells Relative To Hydrogen (10) Or Fluorine (11) In The Ribofuranosyl (Down) Configuration At The 2'-Position. Our Results Indicate That Radiolabeled Ivfru (11) Is Most Promising For Further In Vivo Studies. DOI:10.1021/jm9606406
参考标题:Development Of A General Copper-Catalyzed Vinylic Finkelstein Reaction-Application To The Synthesis Of The C1-C9 Fragment Of Laingolide B 作者:Antoine Nitelet,Kévin Jouvin,Gwilherm Evano |发布日期:2016.10 摘要:Conditions Compatible With A Range Of Highly Functionalized Substrates. The Potential Of This Vinylic Halogen Exchange Reaction In Total Synthesis And Medicinal Chemistry Was Demonstrated By Its Successful Use For The Synthesis Of The C1-C9 Fragment Of Laingolide B And For The Late-Stage Modification Of Drug-Like Molecules. The Extension Of This Halogen Exchange To The Acetylenic And Allenic Finkelstein
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