F-18]FLT;
3 ' deoxy-3 '-flourothymidine;
DNA synthesis;
PET imaging;
proliferation;
fluorine-18;
TK-1;
thymidine kinase;
thymidine metabolism;
C-11]thymidine;
D O I:
10.1016/S0969-8051(99)00104-3
中图分类号:
R8 [特种医学];
R445 [影像诊断学];
学科分类号:
1002 ;
100207 ;
1009 ;
摘要:
A reliable radiosynthesis of 3'-deoxy-3'-[F-18]fluorothymidine ([F-18]FLT) has been developed based on [F-18]fluoride displacement of a protected nosylate precursor. A simple three-step synthesis is described that is useful for preparing >10 mCi (370 MBq) of radiochemically pure [F-18]FLT, with a specific activity >1 Ci/mu mol (37 GBq/mu mol) at EOS within 100 min and in 13% radiochemical yield tend of bombardment (EOB); 7% end of synthesis (EOS). [F-18]FLT has been designed as a new positron emission tomography imaging agent for visualizing cellular proliferation in vivo based on the metabolism of thymidine. NUCL MED BIOL 27;2:143-156, 2000. (C) 2000 Elsevier Science Inc. All rights reserved.