2′-Deoxypseudouridine
Abstract
The synthesis of 2′-deoxypseudouridine (2) is reported by condensation of 2,4-di-t-butoxy-5-lithiopyrimidine with 3,5-di-O-benzyl-2-deoxyribose and with 3,4-O-isopropylidene-2-deoxyribose (both giving the α-anomer also), and stereospecifically from pseudouridine (1)via a 4,2′-anhydro-intermediate and the 2′-chloro-2′-deoxynucleoside (4).