The tubulin polymerization is an attractive target for anticancer therapy and in the development of cancer imaging agents for use in biomedical imaging technique positron emission tomography (PET). 7-Aroyl-aminoindoline-1-sulfonamides are a novel class of potent antitublin agents. Carbon-11-labeled 7-aroyl-aminoindoline-1-sulfonamides have been synthesized as new potential PET agents for imaging of tubulin polymerization in cancers. The target tracers were prepared by O-[11C]methylation of their corresponding precursors using [11C]CH3OTf and isolated by a simplified solid-phase extraction purification procedure in 40–55% radiochemical yields based on [11C]CO2 and decay corrected to the end of bombardment (EOB), 15–20 min overall synthesis time from EOB, >98% radiochemical purity, and 74–111 GBq/µmol specific activity at the end of synthesis. Copyright © 2008 John Wiley & Sons, Ltd.
微管蛋白聚合是抗癌治疗和用于
生物医学成像技术正电子发射断层扫描(PET)的癌症成像剂开发的一个有吸引力的靶点。7-芳酰基-
氨基喃啶-1-磺酰胺是一种新型的有效抗微管蛋白药物。已合成碳-11标记的7-芳酰基-
氨基喃啶-1-磺酰胺,作为用于成像癌症中微管蛋白聚合的新潜在PET试剂。通过使用[11C]CH3OTf对其相应前体进行O-[11C]甲基化,制备了目标示踪剂,并通过简化的固相提取纯化程序分离,辐射
化学产率为40-55%(基于[11C]CO2),并经衰变校正至轰击结束(
EOB),从
EOB起总体合成时间为15-20分钟,辐射
化学纯度超过98%,合成结束时特定活度为74-111 GBq/µmol。版权 © 2008 John Wiley & Sons, Ltd.