ALLYL (5R,6S)-6-((R)-1-((TERT-BUTYLDIMETHYLSILYL)OXY)ETHYL)-7-OXO-3-(PROPYLTHIO)-4-THIA-1-AZABICYCLO(3.2.0)HEPT-2-ENE-2-CARBOXYLATE
allyl (5r,6s)-6-((r)-1-((tert-butyldimethylsilyl)oxy)ethyl)-7-oxo-3-(propylthio)-4-thia-1-azabicyclo(3.2.0)hept-2-ene-2-carboxylate