Synthesis and preliminary biological evaluation of new carbon-11 labeled tetrahydroisoquinoline derivatives as SERM radioligands for PET imaging of ER expression in breast cancer
作者:Mingzhang Gao、Min Wang、Kathy D. Miller、George W. Sledge、Qi-Huang Zheng
DOI:10.1016/j.ejmech.2008.01.001
日期:2008.10
receptor-based breast cancer imaging agents for diagnostic use in biomedical imaging technique positron emission tomography (PET). Tetrahydroisoquinoline derivatives are a class of selective estrogen receptor modulators (SERMs) with high binding affinity and specificity exhibiting up to 50 folds for ERalpha over ERbeta. New carbon-11 labeled tetrahydroisoquinoline derivatives, [11C]methyl 1-(2-(4-(2-(4-f
雌激素受体(ERs)是治疗乳腺癌和开发基于受体的乳腺癌显像剂的诱人靶标,可用于生物医学成像技术正电子发射断层扫描(PET)的诊断。四氢异喹啉衍生物是一类选择性雌激素受体调节剂(SERM),具有较高的结合亲和力和特异性,相对于ERbeta,其对ERalpha的表达高达50倍。新的碳11标记的四氢异喹啉衍生物,[11C]甲基1-(2-(4-(2-(4-氟苯基)-6-羟基-1-甲基-1,2,3,4-四氢异喹啉-1-基)苯氧基)乙基)哌啶-4-羧酸酯([11C] 10a)和[11C]甲基1-(2-(4-(2-(4-(4-氯苯基)-6-羟基-1-甲基-1,2)首先设计,合成和评估了3,4-四氢异喹啉-1-基)苯氧基)乙基)哌啶-4-羧酸酯([11C] 10b)。使用[11C] CH3OTf通过对其相应前体进行O- [11C]甲基化来制备目标示踪剂,并通过固相萃取(SPE)纯化程序进行分离,以40-6