A class of antibiotics with a similar structure to penicillin
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(5R,6R,7R)-7-[2-(3,4-Dimethoxy-phenyl)-acetylamino]-3-methyl-5,8-dioxo-5λ4-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid
TRICHLOROETHYL 6-(PHENYLACETAMIDO)PENICILLANATE S-OXIDE
ethyl (2-aminothiazol-4-yl)-2-(Z)-(trityloxyimino)acetate
(6R,7R)-3-{[Bis-(2-hydroxy-ethyl)-carbamoyloxy]-methyl}-8-oxo-7-(2-thiophen-2-yl-acetylamino)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester
