Reactions of dimesylthymidine with secondary amines: Easy access to 3′,5′-dideoxy-3′-substituted-5′-alkylaminothymidines - New classes of potential antiviral aminonucleosides.
作者:K. Sakthivel、R.Krishna Kumar、T. Pathak
DOI:10.1016/s0040-4020(01)85753-7
日期:1993.1
3,5'-Di-O-mesylthymidine 4a (DMST) on reaction with secondary amines undergoes hitherto unknown ''one-pot-two-steps'' transformation to produce 2,3'-O-anhydro-5'-deoxy-5'-alkylaminothymidines 5a-h. Most of the amines used, irrespective of their basicities showed remarkable selectivity towards the 5'-substitution over the 2,3'-O-anhydro ring formation. Compounds 5a-h could be used as intermediates for the synthesis of a variety of 3,5'-dideoxy-3'-substituted-5'-alkylaminothymidines of the type 9, 10a-b, 11.