(4R,5S,6S)-(pivaloyloxy)methyl 3-((1-(4,5-dihydrothiazol-2-yl)azetidin-3-yl)thio)-6-((R)-1-hydroxyethyl)-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate; (4R,5S,6S)-3-[[1-(4,5-Dihydro-2-thiazolyl)-3-azetidinyl]thio]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic Acid (2,2-Dimethyl-1-oxopropoxy)methyl Ester; L 084; Orapenem; [4R-[4?,5?,6?(R*)]]-3-[[1-(4,5-Dihydro-2-thiazolyl)-3-azetidinyl]thio]-6-(1-hydroxyethyl)-4-methyl-7-oxo-1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic Acid (2,2-Dimethyl-1-oxopropoxy)methyl Ester;
