benzyl-6-(3,5-bis-3-benzyloxycarbonyl-penam-6-ylaminocarbonylmethoxy)-phenoxyacetamide-penam-6-ylcarboylate-1,1-dioxide
benzyl-6-(3,5-bis-3-benzyloxycarbonyl-penam-6-ylaminocarbonylmethoxy)-phenoxyacetamide-penam-6-ylcarboylate-1,1-dioxide