Synthesis of Acyclic Nucleosides withN-[(Benzyloxy)(aryl)methyl] Substituents as Potential HEPT, EBPU, and TNK-651 Analogues
作者:Ali Khalafi-Nezhad、Mohammad Navid Soltani Rad、A. A. Moosavi-Movahedi、M. Kosari
DOI:10.1002/hlca.200790073
日期:2007.4
The syntheses of the novel acyclicnucleosides 5a–5m, carrying different N-[(benzyloxy)(aryl)methyl] substituents, are described (Scheme). These compounds could be prepared in medium-to-good yields by either direct or silyl-assisted coupling of the electrophiles 6 with either purine or pyrimidine nucleobases, or with different imidazole derivatives. The reactivity of the positively charged electrophilic
Iron-Catalyzed <i>N</i>-Alkylation of Azoles via Oxidation of C−H Bond Adjacent to an Oxygen Atom
作者:Shiguang Pan、Jinhua Liu、Huanrong Li、Zhenyu Wang、Xingwei Guo、Zhiping Li
DOI:10.1021/ol100670m
日期:2010.5.7
Azole derivatives were synthesized by iron-catalyzed oxidative reactions of azoles and ethers in good to excellent yields. A wide variety of azoles and ethers were selectively transformed into the corresponding oxidative coupling products under neutral reaction conditions.