Regio- and stereocontrolled synthesis of 2′-5′ linked phosphorothioate oligoadenylates by uranyl ion catalyst in aqueous solution
作者:Masamitu Shimazu、Kazuo Shinozuka、Hiroaki Sawai
DOI:10.1039/b203707f
日期:——
Adenosine 5′-thiophosphoimidazolide (Imp(S)A) was prepared from adenosine, thiophosphoryltrichloride and imidazole. It hydrolyzed four times more slowly than the corresponding adenosine 5′-phosphoimidazolide. Epimerization between the diastereomers of Imp(S)A took place more quickly than the hydrolysis of Imp(S)A in aqueous solution. The uranyl ion catalyzed polymerization of Imp(S)A in neutral aqueous