Synthesis of radiolabeled O6-benzylguanine derivatives as new potential PET tumor imaging agents for the DNA repair protein O6-alkylguanine-DNA alkyltransferase
作者:Qi-Huang Zheng、Xuan Liu、Xiangshu Fei、Ji-Quan Wang、David W. Ohannesian、Leonard C. Erickson、K. Lee Stone、Tanya D. Martinez、Kathy D. Miller、Gary D. Hutchins
DOI:10.1002/jlcr.636
日期:2002.12
Novel radiolabeled O6-benzylguanine derivatives, 2-amino-6-O-[11C]-[(methoxymethyl)benzyloxy]-9-benzyl purines ([11C]p-O6-AMBP, 1a; [11C]m-O6-AMBP, 1b; [11C]o-O6-AMBP, 1c), have been synthesized for evaluation as new potential positron emission tomography (PET) tumor imaging agents for the DNA repair protein, O6-alkylguanine-DNA alkyltransferase (AGT). The appropriate precursors for radiolabeling were
新型放射性标记的 O6-苄基鸟嘌呤衍生物,2-氨基-6-O-[11C]-[(甲氧基甲基)苄氧基]-9-苄基嘌呤([11C]p-O6-AMBP,1a;[11C]m-O6-AMBP , 1b; [11C]o-O6-AMBP, 1c) 已合成用于评估作为 DNA 修复蛋白 O6-烷基鸟嘌呤-DNA 烷基转移酶 (AGT) 的新型潜在正电子发射断层扫描 (PET) 肿瘤成像剂。用于放射性标记的合适前体是从起始材料 2-氨基-6-氯嘌呤分三步获得的,化学产率中等至极好。示踪剂是通过使用 [11C] 三氟甲磺酸甲酯对羟甲基前体进行 O-[11C] 甲基化来制备的。纯目标化合物通过固相萃取 (SPE) 纯化程序以 45-60% 的放射化学产率(衰减校正到轰击结束)和 20-25 分钟的合成时间分离。版权所有 © 2002 John Wiley & Sons,