Synthesis of new carbon-11 labeled benzoxazole derivatives for PET imaging of 5-HT3 receptor
作者:Mingzhang Gao、Min Wang、Gary D. Hutchins、Qi-Huang Zheng
DOI:10.1016/j.ejmech.2007.10.017
日期:2008.7
in brain, heart and cancer diseases, and imaging agents for use in biomedical imaging technique PET. Benzoxazole derivatives are a novel class of 5-HT(3) receptor partial agonists with high binding affinity. Carbon-11 labeled benzoxazole derivatives have been synthesized as new potential PET radioligands for imaging 5-HT(3) receptor. The target tracers were prepared by N-[(11)C]methylation of their
5-HT(3)受体是开发用于脑,心脏病和癌症疾病的治疗剂以及用于生物医学成像技术PET的成像剂的有吸引力的靶标。苯并恶唑衍生物是一类新型的具有高结合亲和力的5-HT(3)受体部分激动剂。碳11标记的苯并恶唑衍生物已被合成为用于成像5-HT(3)受体的新的潜在PET放射性配体。目标示踪剂是通过使用[(11)C] CH(3)OTf通过其相应前体的N-[(11)C]甲基化制备的,并通过HPLC纯化程序以40-50%的放射化学收率分离,将其衰减校正为基于[(11)C] CO(2)的轰炸(EOB)结束。从EOB开始,总的合成时间为20-25分钟。放射化学纯度> 99%,