5-Ethynyl-1-beta-D-arabinofuranosylcytosine (EAC) was prepared from 1-(2,3,5-tri-O-acetyl-beta-D-arabinofuranosyl)cytosine by iodination followed by coupling with (trimethylsilyl)acetylene and deblocking. At 50 microM, EAC was found to inhibit the in vitro replication of herpes simplex virus type 1 and type 2 by greater than 99%. EAC also showed activity against a strain of HSV-1 resistant to (E)-
由1-(2,3,5-三-O-乙酰基-β-D-阿拉伯
呋喃糖基)
胞嘧啶经
碘化,然后与(三甲基甲
硅烷基)
乙炔偶合,制得5-
乙炔基-1-β-D-阿拉伯
呋喃糖基
胞嘧啶(
EAC)。解块。在50 microM时,发现
EAC抑制1型和2型单纯疱疹病毒的体外复制超过99%。
EAC还显示出对抗(E)-5-(2-
溴乙烯基)-
2'-脱氧尿苷的HSV-1菌株的活性,该菌株具有病毒诱导的
胸苷激酶(TK)的改变。在100 microM时,
EAC不会抑制白血病L1210和HeLa细胞的体外生长。
EAC抵抗dCR-CR脱
氨酶的作用,其脱
氨率约为dCR的2%。该化合物是dCR激酶的弱底物,但被HSV-1-和HSV-2诱导的TK分别
磷酸化了50%和30%。