N-Fmoc-N'-[1-(4,4-Dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl]-L-lysine;Fmoc-Lys(Ddiv)-OH;Fmoc-Lys(ivDde)-OH;(2S)-6-[[1-(4,4-dimethyl-2,6-dioxocyclohexylidene)-3-methylbutyl]amino]-2-(9H-fluoren-9-ylmethoxycarbonylamino)hexanoic acid;(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-6-((1-(4,4-dimethyl-2,6-dioxocyclohexylidene)-3-methylbutyl)amino)hexanoic acid;Fmoc-Lys-(IVDDE)-OH;H-Phe-NH2·HCl;N-α-Fmoc-N-ε-1-(4,4-dimethyl-2,6-dioxocyclohex-1 -ylidene)-3-methylbutyl-L-lysine;Nα-Fmoc-Nε-1-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl-L-lysine;9-fluorenylmethyloxycarbonyl-K(1-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl)-OH;Fmoc-K(ivDde)-OH;Fmoc-Lys(ivDde);Nalpha-Fmoc-Nepsilon-[1-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl]-L-lysine