Chemical Name: 2-Amino-9-((1S,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one
Synonym: Entecavir 4-epimer
Smiles: O=C1C2=C(N([C@]3(C[C@@]([H])(O)[C@@]([H])(CO)C3=C)[H])C=N2)N=C(N)N1
Inchi: InChI=1S/C12H11F2N3O/c1-8-12(18-8,5-17-7-15-6-16-17)10-3-2-9(13)4-11(10)14/h2-4,6-8H,5H2,1H3/t8-,12-/m1/s1