8-Oxo-7-phenylacetylamino-3-vinyl-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester

(Z)-2-[2-(三苯甲基氨基)噻唑-4-基]-2-(三苯甲基氧基亚氨基)乙酸乙酯

(6R)-3-hydroxymethyl-8-oxo-7t-(2-phenyl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid

去甲氨噻肟酸乙酯

(6R,7R)-benzhydryl 3-(bromomethyl)-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate