多巴胺D_2受体显像剂~(125)I-IBZM的合成与标记

    • 摘要: 合成了标记前体S-(-)-2-羟基-6-甲氧基-N-[(1-乙基-2-吡咯烷基)甲基]苯甲酰胺(S-(-)-BZM)。光谱数据与结构相符。以S-(-)-BZM为前体,用125I-NaI标记,成功地制备了S-(-)-3-125I-2-羟基-6-甲氧基-N-[(1-乙基-2-吡咯烷基)甲基]苯甲酰胺(S-125I-IBZM)。标记率大于80%,放射化学纯度大于90%,整个制备过程仅需45min,利于药盒化生产。

       

      Abstract: SYNTHESISANDLABELLINGOFDOPAMINED2RECEPTORIMAGINGAGENT125I┐IBZMHuMingyangLiangGaolinPanSangren(JiangsuInstituteofNuclearMedicine,StateKeyLaboratoryofNuclearMedicine,Wuxi214063)ABSTRACTThispaperreportssynthesesoflabelingprecursorS-(-)-2-hydroxy-6-methoxy-N-[(1-ethyl-2-pyrolidinyl)methyl]benzamide(S-BZM).Thechemicalstructureisconfirmedbyspectraldata.UsingH2O2asoxidizingagent,S-BZMislabeledby125I-NaIatroomtempera-ture.S-(-)-3-125I-iodo-2-hydroxy-6-methoxy-N-[(1-ethyl-2-pyrolidinyl)methyl]benzamide(S-125I-IBZM)issuccessfulyprepared.Labelingprocessissimple,thelabelingyieldishigherthan80%,theradiochemicalpurityishigherthan90%.KeywordsDopamineD2receptorSynthesisIBZM125I

       

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