ethyl 2-oxo-3H-benzimidazole-1-carboxylate

5-碘-1,3-二氢苯并咪唑-2-酮

1,3-bis(hydroxymethyl)benzimidazol-2-one

5-Bromo-2,3-dihydro-2-oxo-1H-benzimidazole-1-carboxylic acid 1,1-dimethylethyl ester