Cbz-Valine ganciclovir

2-(2-Amino-1,6-dihydro-6-oxo-purin-9-yl)methoxy-3-hydroxy-1-propyl N-(benzyloxycarbonyl)-L-valinate

N-[(Phenylmethoxy)carbonyl]-L-valine 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]-3-hydroxypropyl ester