头孢噻肟

2,3-环戊烯并吡啶

trimethylsilyl (6R,7R)-3-(acetoxymethyl)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

p-methoxybenzyl 7-phenylacetamido-3-(2,3-cyclopenteno-1-pyridinio)-3-cephem-4-carboxylate iodide

(6R,7R)-3-((6,7-dihydro-5H-cyclopenta[b]pyridin-1-ium-1-yl)methyl)-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate