Synthesis and Potent Anti-HIV-1 Activity of Novel 6-Benzyluracil Analogues of 1-[(2-Hydroxyethoxy)methyl]-6-(phenylthio)thymine
作者:Krzysztof Danel、Erik Larsen、Erik B. Pedersen、Bent F. Vestergaard、Claus Nielsen
DOI:10.1021/jm9600499
日期:1996.1.1
Condensation of the uracils with acetals using trimethylsilyl triflate (TMS triflate) as a catalyst gave acyclic 5-alkyl-6-(arylmethyl)uracil derivatives. 6-Benzyl-5-ethyluracil was also condensed with methyl 5-O-(tert-butyldiphenylsilyl)-2-deoxy-3-O-(phenoxythiocarbonyl+ ++)-alpha,beta-D-erythro-pentofuranoside, followed by Barton reduction and deprotection, to give the anomers of 6-benzyl-5-ethyl-2',3'-dideoxyuridine
由相应的芳基乙腈和2-溴酸酯合成2-烷基-4-芳基-3-氧代丁酸乙酯。丁酸酯与硫脲的缩合,然后用氯乙酸处理,得到5-烷基-6-(芳基甲基)尿嘧啶。使用三氟甲磺酸三甲基甲硅烷基酯(TMS三氟甲磺酸酯)作为催化剂,将尿嘧啶与乙缩醛缩合,得到无环的5-烷基-6-(芳基甲基)尿嘧啶衍生物。还将6-苄基-5-乙基尿嘧啶与5-O-(叔丁基二苯基甲硅烷基)-2-脱氧-3-O-(苯氧硫羰基+++)-α,β-D-赤型戊呋喃糖苷缩合,然后进行巴顿还原脱保护,得到6-苄基-5-乙基-2′,3′-二脱氧尿苷的异构体。用烷基氯甲基硫化物将尿嘧啶烷基化,得到了HEPT的新硫代类似物。测试了所有新的N1取代的尿嘧啶对HIV-1的活性,