(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-(2-((1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl)amino)ethoxy)phenyl)propanoic acid 1g

(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-(2-((1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl)amino)ethoxy)phenyl)propanoic acid 1g