The first synthesis of [<sup>11</sup>C]oseltamivir: a tool for elucidating the relationship between Tamiflu and its adverse effects on the central nervous system
作者:Takuya Arai、Fujiko Konno、Masanao Ogawa、Ming-Rong Zhang、Kazutoshi Suzuki
DOI:10.1002/jlcr.1604
日期:2009.7
Oseltamivir phosphate (Tamiflu®) is an anti-influenza drug approved in many countries. Recently, in Japan, adverse effects on the central nervous system have been reported in younger patients administrated with Tamiflu. As a tool for elucidating the relationship between Tamiflu and its adverse effects, 11C-labeled oseltamivir was synthesized through a two-step reaction involving [11C]acetylation with [1-11C]acetyl chloride. Starting from approximately 37.0 GBq of [11C]CO2, 1.2–1.8 GBq (n=5) of [11C]oseltamivir was obtained at the end of synthesis (EOS) 36–39 min after the end of bombardment. Radiochemical purity and specific activity were greater than 98% and 2.7–6.3 GBq/µmol at EOS, respectively. Copyright © 2009 John Wiley & Sons, Ltd.
磷酸奥司他韦(达菲®)是一种在许多国家获批的抗流感药物。最近,在日本,有报道称年轻患者在使用达菲后出现了中枢神经系统的副作用。为了阐明达菲与其副作用之间的关系,通过两步反应合成11C标记的奥司他韦,其中包括用[1-11C]乙酰氯进行[11C]乙酰化。从大约37.0 GBq的[11C]CO2开始,合成的最后阶段(EOS)在轰击结束后的36-39分钟内获得了1.2-1.8 GBq(n=5)的[11C]奥司他韦。在EOS时,放射化学纯度和比活性分别大于98%和2.7-6.3 GBq/µmol。版权所有 © 2009 John Wiley & Sons, Ltd.