Chemical synthesis of 13C labeled anti-HIV nucleosides as mass-internal standards
作者:Yoshio Saito、Thomas A Zevaco、Luigi A Agrofoglio
DOI:10.1016/s0040-4020(02)01246-2
日期:2002.11
Synthesis of [13C5]-labeled anti-HIV nucleosides, e.g. d4T, ddI, ddA, is described. The methodology used has been optimized due to the very high cost of the starting compound. The key step of this approach was the stereoselective dehomologation of 1,2:5,6-di-O-isopropylidene-3-oxo-α-d-glucofuranose (2) with periodic acid and sodium borohydride, which gave optically pure ribose derivative as the exclusive
描述了[ 13 C 5 ]标记的抗HIV核苷,例如d4T,ddI,ddA的合成。由于起始化合物的成本很高,因此对使用的方法进行了优化。该方法的关键步骤是用高碘酸和硼氢化钠将1,2:5,6-二-O-异亚丙基-3-氧代-α-d-葡萄糖呋喃糖(2)进行立体选择性脱同位,得到光学纯的核糖衍生物作为独家产品。核苷衍生物6a – c是在Vorbrüggen条件下通过5的核糖基化与全碱基化的核碱基获得的。9a – c的脱氧在Corey-Winter条件下,可得到所需的标记核苷类似物12a – c。