(2S,2'S)-1,1'-((2S,2'S)-3,3'-(methylenebis(sulfanediyl))bis(2-methylpropanoyl))bis(pyrrolidine-2-carboxylic acid); 1,1?-[Methylenebis[sulfanediyl[(2S)-2-methyl-1-oxopropane-3,1-diyl]]]bis[(2S)-pyrrolidine-2-carboxylic]acid
(2S,2'S)-1,1'-((2S,2'S)-3,3'-(methylenebis(sulfanediyl))bis(2-methylpropanoyl))bis(pyrrolidine-2-carboxylic acid); 1,1?-[Methylenebis[sulfanediyl[(2S)-2-methyl-1-oxopropane-3,1-diyl]]]bis[(2S)-pyrrolidine-2-carboxylic]acid