for the following products
Fmoc-D-Lys(Dde)-OH | Fmoc-L-Lys(Dde)-OH | Fmoc-Lys(Dde)-OH | N-alpha-(9-Fluorenylmethyloxycarbonyl)-N-epsilon-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)ethyl-L-lysine | N-alpha-Fmoc-N-epsilon-1-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)ethyl-L-lysine and N-Fmoc-N'-[1-(4,4-Dimethyl-2,6-dioxocyclohexylidene)ethyl]-D-lysine
