advent of complex biological pharmacophores. Sulfonyl fluorides can be prepared in water at room temperature, yet they have not been assayed as a potential means to 18F‐labelled biomarkers for PET chemistry. We developed a general route to prepare bifunctional 4‐formyl‐, 3‐formyl‐, 4‐maleimido‐ and 4‐oxylalkynl‐arylsulfonyl [18F]fluorides from their sulfonyl chloride analogues in 1:1 mixtures of acetonitrile
的[亲核掺入18 F]˚F -含
水条件下保持在放射性药物的开发若干优点,特别是复杂的
生物药效的出现。磺酰
氟可在室温下于
水中制备,但尚未被检测为18 F标记的PET
化学标记物的潜在手段。我们开发了一条通用路线,从
乙腈,THF或叔丁基的1:1混合物中,由
磺酰氯类似物制备双功能的4-甲酰基,3-甲酰基,4-马来
酰亚胺基和4-氧炔基-芳基磺酰基[ 18 F]
氟化物。BuOH和Cs [ 18 F] F / Cs 2 CO 3(
水溶液)在室温下反应时间为15分钟。除4 - N-马来
酰亚胺-
苯磺酰氟(3)外,
吡啶可用于选择性地降解前体而不会显着影响产率,从而简化放射性示踪剂的纯化。在[ 18 F]
氟化开始时添加
吡啶(1:1:0.8 t BuOH / Cs 2 CO 3(aq。) /
吡啶)不会对3-甲酰基-2,4,6-三甲基苯磺酰基的收率产生负面影响[ 18 F]
氟化物(2)并显着提高了4-(prop-2-ynyloxy)苯磺酰基[