N2-(((9H-Fluoren-9-yl)methoxy)carbonyl)-N6-(1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl)-N2-methyl-L-lysine

N2-(((9H-Fluoren-9-yl)methoxy)carbonyl)-N6-(1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl)-N2-methyl-L-lysine,