benzylpenicilloic acid α-anilide

[2R-[2α(R*),4β]]-5,5-dimethyl-2-[2-oxo-1-[(phenylacetyl)amino]-2-[(phenylmethyl)amino]ethyl]-4-thiazolidinecarboxylic acid

[2R-[2α(R*),4β]]-2-[2-(ethylamino)-2-oxo-1-[(phenylacetyl)amino]ethyl]-5,5-dimethyl-4-thiazolidinecarboxylic acid

青霉素钾

ethyl 2-(benzimidazol-1-ylsulfanyl)benzoate