描述了一种合成核苷二磷酸和三磷酸以及二核苷多磷酸(Np n N')的新的有效方法。5-受体取代的(5-硝基和5-氯)环Sal核苷酸被用作起始原料,可与各种磷酸盐亲核试剂(如焦磷酸盐或核苷酸)在短时间内以非常高的收率反应成相应的产物。在消耗了起始的环式Sal-磷酸三酯之后,首先将保护基团裂解,最后通过RP柱色谱分离产物。给出了在天然核苷中发现的所有五个嘧啶和嘌呤碱基以及一个非天然嘧啶碱基的实例,以证明该方法可以普遍应用。
A reliable and high yielding synthetic pathway for the synthesis of the biologically highly important class of nucleosidediphosphate sugars (NDP‐sugars) was developed by using various cycloSal‐nucleotides 1 and 9 as active ester building blocks. The reaction with anomerically pure pyranosyl‐1‐phosphates 2 led to the target NDP‐sugars 20–45 in a nucleophilic displacement reaction, which cleaves the
METHOD FOR PRODUCING PHOSPHATE-BRIDGED NUCLEOSIDE CONJUGATES
申请人:Meier Chris
公开号:US20110137023A1
公开(公告)日:2011-06-09
The invention relates to a method for producing phosphate-bridged nucleoside conjugates. In the method a nucleophile is first dissolved in a non-aqueous solvent and dried, and a cyclosaligenyl phosphate compound is subsequently added to the solution.