81370-17-4

(6R-trans)-7-(Benzoylamino)-3-methyl-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester is an intermediate in the synthesis of oxacephem derived beta-lactam antibiotic that is particularly effective against gram-positive bacteria.