D-Penicillamin-disulfid
7-L-phenylacetylamino-4-D-methoxycarbonyl-3,3-dimethyl-1,1,6-trioxoperhydro-1,2,5-dithiazocine
(4S,7R)-3,3-Dimethyl-1,6-dioxo-7-phenylacetylamino-1λ4-[1,2,5]dithiazocane-4-carboxylic acid methyl ester
7-L-phenylacetylamino-4-D-methoxycarbonyl-3,3-dimethyl-6-oxoperhydro-1,2,5-dithiazocine
(S)-3-Mercapto-2-((R)-3-mercapto-2-phenylacetylamino-propionylamino)-3-methyl-butyric acid methyl ester