Synthesis of Optically Pure 4-Fluoro-Glutamines as Potential Metabolic Imaging Agents for Tumors
作者:Wenchao Qu、Zhihao Zha、Karl Ploessl、Brian P. Lieberman、Lin Zhu、David R. Wise、Craig B. Thompson、Hank F. Kung
DOI:10.1021/ja109203d
日期:2011.2.2
route to prepare all fourstereoisomeric 4-fluoro-glutamines was developed by exploiting a Passerini three-component reaction. The skeleton of 4-substituted glutamine derivatives was efficiently constructed. Subsequent four-step reactions, highlighted by a "neutralized" TASF fluorination, provided the desired products with high yields and excellent optical purity. The optically pure fluorine-18 labeled