N. Ghali et al., AN EFFICIENT SYNTHESIS OF 2-[(4-AMINO-1,2-DIHYDRO-2-OXO-1-PYRIMIDINYL)METHOXY]-1,3-PROPANEDIYL-DI-L-VALINATE AN ANTICYTOMEGALOVIRUS AGENT, Nucleosides & nucleotides, 14(7), 1995, pp. 1591-1600
An efficient synthesis for large scale preparation of the titled compo
und, a prodrug for the anti-HCMV agent 1-[2-hydroxy-1-(hydroxymethyl)e
thoxyl]cytosine, 9, has been developed. The product of each step is ea
sily purified by either distillation or recrystallization and the fina
l product is obtained in a high overall yield.