靶向磷酸二酯酶5正电子核素探针的一步法合成
One-step radio synthesis of phosphodiesterase 5 targeted Positron emission tomography tracer
作者:张晓锋,李鹏,赵卫威,吴小艾,闫守财,杨建伟
Author:
收稿日期: 年卷(期)页码:2020,35(06):-608-612
期刊名称:华西药学杂志
Journal Name:WEST CHINA JOURNAL OF PHARMACEUTICAL SCIENCES
关键字:磷酸二酯酶;抑制剂;正电子核素探针;一步法标记;正电子发射断层显像;西地那非;衍生物;标记前体
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基金项目:
中文摘要
目的研究靶向磷酸二酯酶5(PDE5)正电子核素探针制备的新方法。方法以去甲基西地那非为原料,通过亲核反应引入侧链制备~(18)F正电子核素标记的前体与标准品,并采用经典~(18)F亲核取代反应一步法制备靶向PDE5的核素标记探针。结果成功制备了靶向PDE5的正电子核素探针,并通过在线制备HPLC系统纯化了该探针,收率达到了35%。结论采用一步法标记该靶向PDE5的核素探针,避免了传统两步法制备探针容易出现的收率低、副反应多、时间长等缺点,简化了操作步骤,提高了收率,有助于该探针的临床应用。
参考文献
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