We present a very efficient synthetic procedure leading to the phosphorofluoridates RO-P(O)(OH)F 1 or phosphorofluoridothioates RO-P(S)(OH)F 2, which is based on the intermediary of fluorophosphoramidites (RO)P(F)NiPr25 [R = 9-(hydroxyethyloxymethyl)guaninyl), 3′azido-3′deoxythymidinyl, thymidinyl, anhydrothymidinyl, cholesteryl, N6-benzoyl-5′-O-(4,4′-dimethoxytrityl)-2′-deoxyadenosinyl]. The activation of the amino group was performed with trimethylchlorosilane (TMCS).
我们介绍了一种非常高效的合成方法,能够制备出
磷氟酸盐RO-P(O)(OH)F 1或
磷氟硫酸盐RO-P(S)(OH)F 2,其方法基于
氟磷酰胺中间体(RO)P(F)NiPr25 [R = 9-(羟乙氧甲基)
鸟嘌呤基、3′
叠氮-3′脱氧
胸苷基、
胸苷基、脱
水胸苷基、
胆固醇基、N6-苯甲酰-5′-O-(4,4′-二甲氧基三苯甲基)-2′-脱氧
腺苷基]。
氨基的活化采用三
甲基氯硅烷(
TMCS)完成。