[6R-[6alpha,7beta(R*)]]-3-(acetoxymethyl)-7-(hydroxyphenylacetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
6R-[6ALPHA,7BETA(R*)]]-3-(ACETOXYMETHYL)-7-(HYDROXYPHENYLACETAMIDO)-8-OXO-5-THIA-1-AZABICYCLO[4.2.0]OCT-2-ENE-2-CARBOXYLIC ACID