Synthesis and Biological Evaluation of 3΄-C-Ethynyl and 3΄-C-(1,4-disubstituted-1,2,3-triazolo) Double-Headed Pyranonucleosides
作者:Christos Kiritsis、Stella Manta、Ioannis Papasotiriou、Evdoxia Coutouli-Argyropoulou、Sakellarios Trakossas、Jan Balzarini、Dimitri Komiotis
DOI:10.2174/157340612800786624
日期:2012.5.1
respectively and deacetylated to afford the target 1-(3'-C-ethynyl-β-D-allopyranosyl)nucleosides 5a-c,f,g. Copper-Catalyzed Azide-Alkyne Cycloaddition (CuAAC) reaction was utilized to couple the 3'-C-ethynyl pyranonucleoside derivatives with azidoethyl adenine, 5-fluorouracil and thymine, respectively to afford novel triazole double-headed nucleoside analogs 8a-h. 3'-C-Ethynyl pyranonucleosides and the new double-headed
设计并合成了一系列新颖的3'-C-乙炔基和3'-C-(1,4-二取代-1,2,3-三唑)双头吡喃核苷。3-酮基葡糖苷1与乙炔基溴化镁的反应得到所需的前体3-C-乙炔基-1,2:5,6-二-O-异亚丙基-α-D-呋喃糖(2)。水解,然后进行乙酰化,得到1,2,4,6-四-O-乙酰基-3-C-乙炔基-β-D-戊基葡萄糖(3)。将化合物3分别与甲硅烷基化的5-氟尿嘧啶,尿嘧啶,胸腺嘧啶,N4-苯甲酰胞嘧啶和N6-苯甲酰腺嘌呤缩合并脱乙酰基,得到目标1-(3'-C-乙炔基-β-D-戊吡喃糖基)核苷5a-c, ,铜催化的叠氮化物-炔烃环加成反应(CuAAC)用于将3'-C-乙炔基吡喃核苷衍生物与叠氮基乙基腺嘌呤,5-氟尿嘧啶和胸腺嘧啶偶联,分别得到新的三唑双头核苷类似物8a-h。评价了3'-C-乙炔基吡喃核苷和新的双头类似物的抗病毒和细胞抑制活性。尽管这些化合物均未显示出明显的细胞抑制活性并且没