58684-54-1 | (6R-trans)-3-(acetoxymethyl)-7-[(4-chloro-1,3-dioxobutyl)amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid | C14H15 Cl N2 O7 S |
58684-20-1 | 1H-Pyrrole-2-carboxylic acid, 5-[(acetyloxy)methyl]-3-(3-ethoxy-3-oxopropyl)-4-methyl-, phenylmethyl ester | C21H25NO6 |