Synthesis and in vitro evaluation of 18F labeled tyrosine derivatives as potential positron emission tomography (PET) imaging agents
作者:Limin Wang、Wenchao Qu、Brian Lieberman、Karl Ploessl、Hank F. Kung
DOI:10.1016/j.bmcl.2010.05.007
日期:2010.6
Three new 18F labeled fluoroalkyl tyrosine derivatives, O-(2-[18F]fluoroethyl)-α-methyltyrosine (FEMT, [18F]2), O-(2-[18F]fluoroethyl)-2-l-azatyrosine (FEAT, [18F]3), O-(2-[18F]fluoroethyl)-l-tyrosineamide (FETA, [18F]4) have been synthesized and radiofluorinated with 5–34% decay-corrected yield. In vitro studies were carried out in U-138 MG human glioblastoma. Cellular uptake of new tracers was compared
三个新的18 ˚F标记氟烷酪氨酸衍生物,ø - (2- [ 18 F]氟乙基)-α甲基酪氨酸(FEMT,[ 18 F] 2),ø - (2- [ 18 F]氟乙基)-2-升-合成了氮杂酪氨酸(FEAT,[ 18 F] 3),O-(2- [ 18 F]氟乙基)-1-酪氨酸酰胺(FETA,[ 18 F] 4),并进行了放射性氟化,衰变校正后的收率为5–34%。在U-138 MG人胶质母细胞瘤中进行了体外研究。将新示踪剂的细胞摄取与临床使用的显像剂进行了比较O-(2- [ 18 F]氟乙基)-1-酪氨酸(FET,[ 18 F] 1)。示踪剂的吸收,接着FET的([顺序18 F] 1)> FEAT([ 18 F] 3)> FEMT([ 18 F] 2) ≈ FETA([ 18 F] 4)。