71542-79-5

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