Entecavir Impurities
English Synonyms:(1r,3r,4r)-Entecavir;2-Amino-9-((1r,3r,4r)-4-Hydroxy-3-(Hydroxymethyl)-2-Methylenecyclopentyl)-1,9-Dihydro-6h -Purin-6-Onehydrate;(1r,3r,4r)-Entecavir,2-Amino-1,9-Dihydro-9-[(1r,3r,4r)-4-Hydroxy-3-(Hydroxymethyl)-2- Methylenecyclopentyl]-6h-Purin-6-One;entecavir(1r,3r,4r)diast