作者:Victor Marquez、Olaf Ludek
DOI:10.1055/s-2007-990847
日期:2007.11
dine (N-MCT) is a carbocyclic nucleoside analogue with potent anti-HSV and KSHV activity. The critical step in the synthesis of N-MCT and other carbocyclic nucleoside analogues is the introduction of the nucleobase into the carbocyclic moiety. For this, convergent and linear strategies were compared side by side. In the convergent approach, the base was coupled to the carbocyclic moiety by either a
North-methanocarbathymidine (N-MCT) 是一种碳环核苷类似物,具有有效的抗 HSV 和 KSHV 活性。合成 N-MCT 和其他碳环核苷类似物的关键步骤是将核碱基引入碳环部分。为此,并排比较了收敛策略和线性策略。在收敛方法中,碱基通过光信反应或甲磺酸酯的置换与碳环部分偶联。该策略导致形成不同量的O 2 -区域异构体,这取决于所应用的程序。此外,Mitsunobu 反应的副产物必须从偶联产物中分离出来。虽然更长,但线性策略选择性地导致目标化合物 N-MCT,总产率与收敛方法相当,