benzyl-6-(3,5-bis-3-benzyloxycarbonyl-penam-6-yl-aminocarbonylmethoxy)-phenoxyacetamide-penam-6-ylcarboylate
benzyl-6-(3,5-bis-3-benzyloxycarbonyl-penam-6-yl-aminocarbonylmethoxy)-phenoxyacetamide-penam-6-ylcarboylate