作者:Hans-Dieter Gerber、Gerhard Klebe
DOI:10.1039/c2ob26387d
日期:——
To thoroughly study the functional role of prokaryotic t-RNA-guanine-transglycosylases which are essential in the pathogenesis of shigellosis, novel efficient, high-yielding synthetic approaches for preQ1 base, Q base, as well as for (ent)-Q base mainly employing cheap and readily available starting materials have been developed. Q base as well as (ent)-Q base are accessible starting from preQ1 base via nucleophilic substitution reactions with appropriately decorated halocyclopentenyl synthons, prior to that prepared from naturally occurring carbohydrates.
原核 t-RNA-鸟嘌呤-转糖基化酶在志贺氏杆菌病的发病机制中起着至关重要的作用,为了深入研究这些酶的功能作用,我们主要利用廉价易得的起始材料,开发出了高效、高产的前 Q1 碱基、Q 碱基和(ent)-Q 碱基的新型合成方法。Q 碱和(ent)-Q 碱可以从预 Q1 碱开始,通过与适当装饰的卤代环戊烯合成物发生亲核取代反应而获得,在此之前,它们是由天然碳水化合物制备的。