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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >New aspects on the preparation of ((11)C)Methionine-a simple and fast online approach without preparative HPLC.
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New aspects on the preparation of ((11)C)Methionine-a simple and fast online approach without preparative HPLC.

机译:((11)C)蛋氨酸制备的新方面-一种无需制备HPLC的简单快速的在线方法。

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摘要

At present, most data available on PET imaging of brain tumors using amino acids are based on l-[S-methyl-(11)C]methionine (MET). This radiopharmaceutical accurately delineates tumor extent, sometimes even better than CT. Since MET is playing such an important role for PET, a potent preparation method for this radiotracer allowing frequent syntheses for PET routine is desirable. Therefore, a simple disposable synthesis module was conceived without HPLC purification. Using a solid supported [(11)C]methylation on Al(2)O(3) leads to the simplification of the preparation requiring only filtration for separation of precursor and MET. The presented method is able to produce high purity MET in excellent yields enough to serve several consecutive patients.
机译:目前,关于使用氨基酸对脑肿瘤进行PET成像的大多数数据都基于1- [S-甲基-(11)C]蛋氨酸(MET)。这种放射性药物可以准确地描绘出肿瘤的范围,有时甚至比CT更好。由于MET在PET中起着如此重要的作用,因此需要一种有效的制备该放射性示踪剂的方法,以允许PET常规的频繁合成。因此,构思了一种无需HPLC纯化的简单的一次性合成模块。在Al(2)O(3)上使用固体负载的[(11)C]甲基化可简化制备过程,仅需过滤即可分离前体和MET。所提出的方法能够以足够高的产率产生高纯度的MET,足以服务几个连续的患者。

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