Synthesis of [18F]-labeled N-3(substituted) thymidine analogues: N-3([18F]fluorobutyl) thymidine ([18F]-FBT) and N-3([18F]fluoropentyl) thymidine ([18F]-FPT) for PET
Synthesis of [18F]-labeled N-3(substituted) thymidine analogues: N-3([18F]fluorobutyl) thymidine ([18F]-FBT) and N-3([18F]fluoropentyl) thymidine ([18F]-FPT) for PET
Visible‐Light‐Induced Pyridylation of Remote C(sp
<sup>3</sup>
)−H Bonds by Radical Translocation of N‐Alkoxypyridinium Salts
作者:Inwon Kim、Bohyun Park、Gyumin Kang、Jiyun Kim、Hoimin Jung、Hyeonyeong Lee、Mu‐Hyun Baik、Sungwoo Hong
DOI:10.1002/anie.201809879
日期:2018.11.19
Metal‐free, visible‐light‐induced site‐selective heteroarylation of remote C(sp3)−H bonds has been accomplished through the design of N‐alkoxyheteroarenium salts serving as both alkoxy radical precursors and heteroaryl sources. The transient alkoxy radical can be generated by the single‐electron reduction of an N‐alkoxypyridinium substrate by a photoexcited quinolinone catalyst. Subsequent radical translocation