(5R,6S)-ALLYL 6-((R)-1-HYDROXYETHYL)-7-OXO-3-((R)-TETRAHYDROFURAN-2-YL)-4-THIA-1-AZABICYCLO(3.2.0)HEPT-2-ENE-2-CARBOXYLATE
(5r,6s)-allyl 6-((r)-1-hydroxyethyl)-7-oxo-3-((r)-tetrahydrofuran-2-yl)-4-thia-1-azabicyclo(3.2.0)hept-2-ene-2-carboxylate