D-penicillamine hydrochloride
D-(+)-3-formyl-2,2,5,5-tetramethyl-thiazolidine-4-carboxylic acid
3D-carboxy-6D-carbobenzoxyamino-2,2-dimethyl-5-oxoperhydro-1,4-thiazepine methyl ester
3D-carboxy-6L-carbobenzoxyamino-2,2-dimethyl-5-oxoperhydro-1,4-thiazepine methyl ester
N-benzyloxycarbonyl-S-trityl-L-cysteinyl-D-penicillamine methyl ester