(S)-2-amino-4-(2-((2-amino-6-oxo-1H-purin-9(6H)-yl)methoxy)ethoxy)-4-oxobutanoic acid

(S)-2-((2-amino-6-oxo-1H-purin-9(6H)-yl)methoxy)ethyl 2-amino-3-phenylpropanoate

(S)-2-((2-amino-6-oxo-1H-purin-9(6H)-yl)methoxy)ethyl 2,6-diaminohexanoate

isobutyryl-ACV

acyclovir pivarate