Synthesis and biological activity of 2'-fluoro-2-halo derivatives of 9-.beta.-D-arabinofuranosyladenine
作者:John A. Montgomery、Anita T. Shortnacy-Fowler、Sarah D. Clayton、James M. Riordan、John A. Secrist
DOI:10.1021/jm00080a029
日期:1992.1
The synthesis of 2-halo-9-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)adenines (4b and 4d) by coupling the 2,6-dihalopurine with 3-acetyl-5-benzoyl-2-deoxy-2-fluoro-D-arabinofuranosyl bromide (2) followed by replacement of the 6-halogen with concomitant removal of the acyl blocking groups is described. 2-Fluoroadenine derivative 4g had to be prepared by the diazotization-fluorination of 2-aminoadenine
通过将2,6-二卤代嘌呤与3-乙酰基-5-苯甲酰基-2-脱氧偶合,合成2-卤代9-(2-脱氧-2-氟-β-D-阿拉伯呋喃糖基)ni啶(4b和4d)描述了-2-氟-D-阿拉伯呋喃糖基溴化物(2),然后取代6-卤素并同时去除了酰基保护基团。必须通过2-氨基腺嘌呤核苷4e的重氮化-氟化来制备2-氟鸟嘌呤衍生物4g。所有三种核苷均能使接种P388白血病的小鼠的寿命延长。当在白血病细胞植入后第1、5和9天每3h x 8给予化合物时,可获得最佳结果。通过4f脱乙酰基化并在4h脱氧后再去除5a的苯甲酰基制得的2',3'-二脱氧核苷5b在细胞培养中对HIV具有轻微的活性。