Design and Synthesis of Some Novel Oxiconazole-Like Carboacyclic Nucleoside Analogues, as Potential Chemotherapeutic Agents
作者:Mohammad Navid Soltani Rad、Ali Khalafi-Nezhad、Somayeh Behrouz
DOI:10.1002/hlca.200900051
日期:2009.9
The syntheses of some novel carboacyclic nucleosides, 17a–17o, containing oxiconazole‐like scaffolds, are described (Schemes 1–3). In this series of carboacyclic nucleosides, pyrimidine as well as purine and other imidazole derivatives were employed as an imidazole successor in oxiconazole. These compounds could be prepared in good yields by using two different strategies (Schemes 1 and 2). Due to
描述了一些新颖的碳环核苷17a – 17o的合成,其中含有氧康唑样支架(方案1 – 3)。在这一系列碳环核苷中,嘧啶以及嘌呤和其他咪唑衍生物被用作奥昔康唑中的咪唑继任者。通过使用两种不同的策略(方案1和2),可以高收率制备这些化合物。由于方案1中,Ñ被实现-耦合用2- bromoacetophenones核碱基为18A - 18E,并随后将其肟化,得到19A - 19E最后Ø烷基化与多样化的烷化剂源导致产品17A - 17克,17N和17O。在方案2中,使用2-溴苯乙酮肟20,然后进行核碱基的N-偶联,得到19f - 19j,其最终O-烷基化反应产生17h - 17m(方案2)。为了合理地解释(E)-肟醚而不是(Z)-肟异构体,讨论了PM3半经验量子力学计算,该计算表明(E)-异构体的形成热较低。