作者:Shahrzad Khamnei、Paul F. Torrence
DOI:10.1021/jm9600757
日期:1996.1.1
phosphorodichloridate was reacted immediately with excess nucleoside under the same conditions. The control model compound 3 was prepared by reaction of phenyl phosphorodichloridate and excess nucleoside in pyridine/methylene chloride at 0 degree C to give 3 in 82% yield. The synthesis of triester 7 involved reaction of alpha-(chloroacetyl)salicyl chloride with 2,3,4,6-tetra-O-benzyl-D-glucopyranose to give
描述了一种潜在应用到跨亲脂膜递送极性核苷和核苷酸的方法,即基于水杨酸磷酸酯的核苷酸前药。选择3'-叠氮基-3'-脱氧胸苷(AZT)和3'-脱氧胸苷(ddT)作为模型。对于原型化合物1和2的合成,方法首先是使水杨酸甲酯(对于1)或水杨酸苯酯(对于2)与氯氧化磷在干燥的二氯甲烷中于0℃反应,并加入三乙胺作为除酸剂。在相同条件下,使所得的中间体二氯磷酸二氢盐立即与过量的核苷反应。对照模型化合物3是通过使二氯化磷苯基酯和过量的核苷在吡啶/二氯甲烷中于0℃反应以82的收率得到3而制备的。三酯7的合成涉及α-(氯乙酰基)水杨酰氯与2,3,4,6-四-O-苄基-D-吡喃葡萄糖反应,得到[[(2,3,4,6-四-O-苄基-D-吡喃葡糖基)-氧]羰基] -2-(1-氯乙酰氧基)苯(4),将其脱氯乙酰化为5,2,3,4,6-四-O-苄基-D-吡喃葡糖基水杨酸酯。用三氯氧化磷进行5的磷酸化提供了二氯化磷,其通过