bis(2-acetamido-2-deoxy-α-D-glucopyranosyl)-1,1'-diselenide

bis(2-acetamido-2-deoxy-β-D-galactopyranosyl)-1,1'-diselenide

半胱氨酸

N,N'-L-cystyl-bis-glycine diethyl ester

N-(4-nitro-benzyloxycarbonyl)-L-glutamic acid