Synthesis of 4′-(Hydroxymethyl)Guanosine and a Phosphonate Analogue of Guanylic Acid

Abstract
The synthesis of 4′-(hydroxymethyl)guanosine (7) and the phosphonate analogue 8 of guanylic acid proceed from a common intermediate, 2′, 3′-O-isopropylidene-N 2-(monomethoxytrityl)-guanosine-5′-aldehyde (13).