Synthesis of [1′,2′,5′,2-13C4]-2′-Deoxy-D-adenosine by a Chemoenzymatic Strategy to Enable Labelling of Any of the 215 Carbon-13 and Nitrogen-15 Isotopomers
作者:Niels Ouwerkerk、Jacques van Boom、Johan Lugtenburg、Jan Raap
DOI:10.1002/1099-0690(200207)2002:14<2356::aid-ejoc2356>3.0.co;2-s
日期:2002.7
cost, each of the steps was optimised to convert the commercially available and isotopically highly enriched (99%) synthons (acetaldehyde, acetic acid, ammonia, benzylamine, formic acid, methylamine, potassium cyanide, potassium thiocyanate and sodium nitrite) as quantitatively as possible. (© Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)
已选择酶促反式-N-糖基化作为将[13C1]-腺嘌呤与[13C3]-2-脱氧-D-核糖偶联的首选方法。标记腺嘌呤碱基的酶促戊糖基化是在两步/一锅反应中实现的,从标记在糖环中的胸苷开始,而不是在胸腺嘧啶碱基处。这种胸苷磷酸化酶催化(TP 催化)和嘌呤核苷磷酸化酶催化(PNP 催化)转氨反应的效率通过所得 [1',2',5', 2-13C4]-2'-脱氧-D-腺苷。为了验证腺嘌呤和糖中的所有碳和氮位置以及位置组合都可以以最低成本被 13C 和 15N 取代,每个步骤都经过优化,以尽可能定量地转化市售和同位素高度富集 (99%) 的合成子(乙醛、乙酸、氨、苄胺、甲酸、甲胺、氰化钾、硫氰酸钾和亚硝酸钠)。(© Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)