for the following products
Fmoc-L-Lys(ivDde)-OH | Fmoc-Lys(Ddiv)-OH | Fmoc-Lys(ivDde)-OH | N-alpha-Fmoc-N-epsilon-1-(4,4-dimethyl-2,6-dioxocyclohex-1 -ylidene)-3-methylbutyl-L-lysine | N-Fmoc-N-[1-(4,4-Dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl]-L-lysine and N-alpha-(9-Fluorenylmethyloxycarbonyl)-N-epsilon-[1-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)-3-methylbutyl]-L-lysine
