Convenient method for the preparation of no-carrier-added O-(2-[18F]fluoroethyl)-L-tyrosine)
申请人:Institute of Nuclear Energy Research
公开号:US07132563B1
公开(公告)日:2006-11-07
This is a novel method for production of no-carrier-added O-(2-[18F]fluoroethyl)-L-Tyrosine, which has been proved a suitable PET (position emission tomography) probe for tumor diagnosis imaging, and the preparation of the title compound starts from precursors with the chemical structures as in Formula 1, wherein R1 is a protective group for the carboxyl functional group, R2 is a protective group for the amino group, and R3 acts as a leaving group, R1 represents an arylalkyl group, R2 represents a carboxyl group, and R3 represents a p-tosyloxy, methane sulfonyloxy or trifluoromethane sulfonyloxy or bromine, and the final purification of the product is using a separation column, which is very convenient for automated synthesis, and the invention uses the precursor with the chemical structures as in Formula 1.
这是一种用于生产无载体添加的O-(2-[18F]氟乙基)-L-酪氨酸的新方法,已被证明是一种适用于肿瘤诊断成像的PET(正电子发射断层扫描)探针,所述标题化合物的制备始于具有化学结构如公式1中的前体,其中R1是羧基的保护基,R2是氨基的保护基,R3作为脱离基,R1代表芳基烷基,R2代表羧基,R3代表对甲苯磺酸酯基、甲磺酸酯基或三氟甲磺酸酯基或溴基,最终产品的最终纯化使用分离柱,非常方便用于自动合成,该发明使用具有化学结构如公式1的前体。