2-[(2-amino-6-oxo-3H-purin-9-yl)methoxy]ethyl (2S)-2-amino-3-methylbutanoate 2-[(2-amino-6-oxo-3H-purin-9-yl)methoxy]ethyl (2S)-2-amino-3-methyl-butanoate (2S)-2-amino-3-methylbutanoic acid 2-[(2-amino-6-oxo-3H-purin-9-yl)methoxy]ethyl ester (2S)-2-amino-3-methyl-butyric acid 2-[(2-amino-6-keto-3H-purin-9-yl)methoxy]ethyl ester 124832-26-4 NCGC00159520-02 KS-1126 Valacyclovir BW-256U Talavir ValACV Virval Zelitrex 2-[(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]ethyl L-valinate L-Valine ester with 9-((2-hydroxyethoxy)methyl)guanine L-Valine, 2-((2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy)ethyl ester Valaciclovir CHEBI:35854 256U87 124832-27-5 (HYDROCHLORIDE) AIDS-070982 AIDS070982 Acyclovir-valine BW256U87 VACV Valaciclovir, Valtrex BSPBio_002474 2-{[(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methyl]oxy}ethyl L-valinate