Design, Efficient Synthesis, and Anti‐HIV Activity of 4′‐<i>C</i>‐Cyano‐ and 4′‐<i>C</i>‐Ethynyl‐2′‐deoxy Purine Nucleosides
作者:Satoru Kohgo、Kohei Yamada、Kenji Kitano、Yuko Iwai、Shinji Sakata、Noriyuki Ashida、Hiroyuki Hayakawa、Daisuke Nameki、Eiichi Kodama、Masao Matsuoka、Hiroaki Mitsuya、Hiroshi Ohrui
DOI:10.1081/ncn-120037508
日期:2004.12.31
To prove our hypothesis, we planned to develop an efficient synthesis of 4'-C-cyano-2'-deoxy purine nucleosides (4'-CNdNs) and 4'-C-ethynyl-2'-deoxy purine nucleosides (4'-EdNs). Consequently, we succeeded in developing an efficient synthesis of six 2'-deoxy purine nucleosides bearing either a cyano or an ethynyl group at the C-4' position of the sugar moiety from 2'-deoxyadenosine and 2,6-diaminopurine
一些4'-C-乙炔基-2'-脱氧嘌呤核苷在一系列4'-C-取代的2'-脱氧核苷中显示出最有效的抗HIV活性,其4'-C取代基为甲基,乙基,乙炔基和以此类推。我们的假设是,它们在C-4'位的取代基越小,它们显示出的生物活性就越好。因此,取代基小于乙炔基的4'-C-氰基-2'-脱氧嘌呤核苷将具有更强的抗病毒活性。为了证明我们的假设,我们计划开发4'-C-氰基-2'-脱氧嘌呤核苷(4'-CNdNs)和4'-C-乙炔基-2'-脱氧嘌呤核苷(4'- EdNs)。因此,我们成功开发了六个2'的有效合成 -在2'-脱氧腺苷和2,6-二氨基嘌呤2'-脱氧核糖苷的糖部分的C-4'位置带有氰基或乙炔基的-脱氧嘌呤核苷。不幸的是,4'-C-氰基衍生物显示出较低的抗HIV-1活性,而两种4'-C-乙炔基衍生物表明其体内毒性很高。