(±)-1-(2-bromo-4,5-dimethoxybenzyl)-7-hydroxy-6-methoxy-2-[11C]-methyl-1,2,3,4-tetrahydroisoquinoline, (HCJA-69024, a selective ligand for the D1 receptor was prepared by N-alkylation of (±)N-desmethyl A-69024 with [11C]methyl iodide in DMF. The radiotracer was purified by semi-preparative reverse-phase HPLC. The average specific activity was 1950 mCi/μmol calculated at end-of-synthesis (EOS). The average time of synthesis including formulation was 20 minutes.
(±)-1-(2-
溴-4,5-二甲氧基苄基)-7-羟基-6-甲氧基-2-[11C]甲基-1,2,3,4-
四氢异喹啉,(HCJA-69024,一种D1受体选择性
配体)通过(±)N-去甲基A-69024与[11C]甲基
碘在
DMF中进行N-烷基化合成。该放射性示踪剂通过半制备反相高效液色谱(HPLC)纯化。计算得到合成结束(EOS)时的平均比活度为1950 mCi/μmol。包括配制在内的平均合成时间为20分钟。