Bifunctional acyclic nucleoside phosphonates: synthesis of chiral 9-{3-hydroxy[1,4-bis(phosphonomethoxy)]butan-2-yl} derivatives of purines
作者:Silvie Vrbková、Martin Dračínský、Antonín Holý
DOI:10.1016/j.tetasy.2007.09.021
日期:2007.9
We report herein a general method for the synthesis of new types of chiral acyclic nucleoside four-carbon bisphosphonates. The alkylation of 2-amino-6-chloropurine and adenine was performed with (2S,3S)- or (2R,3R)-1,4-[bis(diisopropoxyphosphoryl)methoxy]]-3-[(methylsulfonyl)oxy]butan-2-yl benzoate. Alkylations provided (2R,3R) or (2S,3S) N9-substituted nucleobases, which were further converted to
我们在此报告了一种用于合成新型手性无环核苷四碳双膦酸酯的通用方法。2-氨基-6-氯嘌呤和腺嘌呤的烷基化是用(2 S,3 S)-或(2 R,3 R)-1,4- [双(二异丙氧基磷酰基)甲氧基]]-3-[(甲基磺酰基) )氧基]丁-2-苯甲酸酯。提供的烷基化为(2 R,3 R)或(2 S,3 S)N 9-取代的核碱基,其进一步被转化为其他衍生物。这些转化包括核碱基的修饰或双膦酸酯链的转化。随后用溴代三甲基硅烷对二异丙基酯进行脱保护,得到了所得的(2 R,3 R)-或(2 S,3 S)-双膦酸。