Nawrot Barbara, Sobczak Milena, Antoszczyk Slawomir
Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
Org Lett. 2002 May 16;4(10):1799-802. doi: 10.1021/ol0259084.
[structure: see text] Three different approaches were used for the synthesis of dinucleoside methanephosphonamidates [3'-NH-P(O)(CH3)O-5'], starting from dichloromethylphosphine or dichloromethanephosphonate as the phosphorus-containing moiety. 5'-DMT-3'-amino-3'-deoxythymidine and N(4)-benzoyl-5'-DMT-3'-amino-2',3'-dideoxycytidine were used as the aminonucleoside precursors and the respective 3'-protected nucleosides (thymidine or N(4)-benzoyl-2'-deoxycytidine) as the 5'-hydroxyl reagents.
[结构:见正文] 以二氯甲基膦或二氯甲烷膦酸酯作为含磷部分,采用三种不同方法合成了二核苷甲膦酰胺酸酯[3'-NH-P(O)(CH3)O-5']。5'-二甲氧基三苯甲基-3'-氨基-3'-脱氧胸苷和N(4)-苯甲酰基-5'-二甲氧基三苯甲基-3'-氨基-2',3'-二脱氧胞苷用作氨基核苷前体,相应的3'-保护核苷(胸苷或N(4)-苯甲酰基-2'-脱氧胞苷)用作5'-羟基试剂。