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![(6R,7R)-benzhydryl 3-(hydroxymethyl)-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate结构式](https://image.chemsrc.com/caspic/025/35246-64-1.png)
![(6R-trans)-3-Ethenyl-8-oxo-7-[(phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester结构式](https://image.chemsrc.com/caspic/234/94796-13-1.png)
![(Z)-2-[2-(Tritylamino)thiazol-4-yl]-2-(trityloxyimino)acetic Acid Ethyl Ester结构式](https://image.chemsrc.com/caspic/185/69689-86-7.png)
![(6R)-3-hydroxymethyl-8-oxo-7t-(2-phenyl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid结构式](https://image.chemsrc.com/caspic/041/28240-15-5.png)
![(6R,7R)-benzhydryl 3-(bromomethyl)-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate结构式](https://image.chemsrc.com/caspic/172/64276-70-6.png)
![diphenylmethyl 7β-[2-(2-tritylaminothiazol-4-yl)-(Z)-2-tritylhydroxyimino]-3-vinyl-3-cephem-4-carboxylate结构式](https://image.chemsrc.com/caspic/041/123201-39-8.png)
