Synthesis and Stability of Nucleoside 3′,5′-Cyclic Phosphate Triesters Masked with Enzymatically and Thermally Labile Phosphate Protecting Groups
作者:Vyankat A. Sontakke、Vaishali S. Shinde、Harri Lönnberg、Mikko Ora
DOI:10.1002/ejoc.201403227
日期:2015.1
Appropriately protected structurally modified nucleoside 3′,5′-cyclic monophosphates are known to show antiviral activity. For this reason, a straightforward synthesis of nucleoside 3′,5′-cyclic phosphates protected with three different enzymatically removable groups, viz. 3-acetyloxy-2,2-bis(ethoxycarbonyl)propyl (in 1 and 4), 4-acetylthio-2,2-dimethyl-3-oxobutyl (in 2), and 4-(tert-butyldisulfanyl)-2
已知经过适当保护的结构修饰核苷 3',5'-环状单磷酸酯具有抗病毒活性。出于这个原因,核苷 3',5'-环状磷酸酯的直接合成被三个不同的酶促可去除基团保护,即。3-乙酰氧基-2,2-双(乙氧基羰基)丙基(在 1 和 4 中)、4-乙酰硫基-2,2-二甲基-3-氧丁基(在 2 中)和 4-(叔丁基二硫烷基)-2,2描述了-二甲基-3-氧代丁基(3 个)基团。通过反相 HPLC 监测在 pH 7.5 和 37°C 下这些保护基团的去除情况。