N-Benzoyl-S-hydrazinocarbonylmethyl-L-cystein-S,S-dioxid-hydrazid
N-Benzoyl-S-methoxycarbonylmethyl-L-cystein-S,S-dioxid-methylester
N-Benzoyl-S-hydrazinocarbonylmethyl-L-cystein-hydrazid
N-Benzoyl-S-carbamoylmethyl-L-cystein-amid
N-Benzoyl-S-carboxymethyl-L-cystein-S,S-dioxid