Access to Any Site-Directed Isotopomer of Methionine, Selenomethionine, Cysteine, and Selenocysteine− Use of Simple, Efficient Modular Synthetic Reaction Schemes for Isotope Incorporation
作者:Arjan H. G. Siebum、Wei Sein Woo、Jan Raap、Johan Lugtenburg
DOI:10.1002/ejoc.200400063
日期:2004.7
chemistry. These sulfur- and selenium-containing amino acids fulfil many essential roles in the living organism. In addition, homoserine could be converted in a few steps into optically active L-vinylglycine. As well as the stable isotopes 13C, 15N, 17O, and 18O, the radioactive isotopes of sulfur, selenium and carbon can also be easily introduced in a site-directed fashion. In view of the wide scope
已经制定了允许访问受保护丝氨酸和高丝氨酸的任何同位素的简单模块化反应方案。这些系统可以通过光信化学简单地转化为半胱氨酸、硒代半胱氨酸、高半胱氨酸、高硒代半胱氨酸、必需氨基酸甲硫氨酸和硒代甲硫氨酸。这些含硫和硒的氨基酸在生物体中扮演着许多重要的角色。此外,高丝氨酸可以通过几个步骤转化为光学活性 L-乙烯基甘氨酸。除了稳定同位素 13C、15N、17O 和 18O 外,硫、硒和碳的放射性同位素也可以很容易地以定点方式引入。鉴于光信反应的范围很广,我们认为,应该可以通过这种基本化学以任何定点同位素标记形式制备更多具有丝氨酸和高丝氨酸碳骨架的重要系统。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)