Synthesis of 8-(ω-Hydroxyalkyl)-, 8-(ω-Hydroxyalk-1-enyl)-, and 8-(ω-Hydroxyalk-1-ynyl)adenines Using the <i>tert</i>-Butyldimethylsilyloxymethyl Group, a New and Versatile Protecting Group of Adenine
作者:Pascal Lang、Géraldine Magnin、Gérald Mathis、Alain Burger、Jean-François Biellmann
DOI:10.1021/jo000841o
日期:2000.11.1
analogues of adenine substituted at C-8 by an omega-hydroxyalkyl, omega-hydroxyalk-1-enyl, or omega-hydroxyalk-1-ynyl chain of various length has been carried out in five or six steps starting from adenine. The analogues were obtained using a new protecting group of adenine, the tert-butyldimethylsilyloxymethyl group. 9-tert-Butyldimethylsilyloxymethyl-adenine is more soluble than adenine in organic
从腺嘌呤开始,已在五或六个步骤中合成了12个在C-8处被各种长度的ω-羟烷基,ω-羟基烷-1-烯基或ω-羟基烷-1-炔基取代的腺嘌呤类似物。使用新的腺嘌呤保护基叔丁基二甲基甲硅烷基氧基甲基获得类似物。9-叔丁基二甲基甲硅烷基氧基甲基-腺嘌呤比腺嘌呤在有机溶剂中的溶解度更高。它是从腺嘌呤分两步在区域上特异性制备的,并且在碱性条件下适合于C-8碘化,然后通过钯催化的交叉偶联反应(Stille或Sonogashira)在C-8处引入各种碳链。在酸性条件下除去了保护基,从而证明了其多功能性。