52773-66-7 Benzyl (S)-(2-((2,5-dioxo-1-pyrrolidinyl)oxy)-2-oxo-1-((4-(benzyloxy)phenyl)methyl)ethyl)carbamate Carbamic acid, (2-((2,5-dioxo-1-pyrrolidinyl)oxy)-2-oxo-1-((4-(phenylmethoxy)phenyl)methyl)ethyl)-, phenylmethyl ester, (S)- EINECS 258-168-8