label: tert-butoxycarbonyl-cysteine (alpha,alpha'-dimethylglycyl-alpha,alpha'-dimethylglycyl-alpha,alpha'-dimethylglycine methyl ester) amide disulfide
label_lc: tert-butoxycarbonyl-cysteine (alpha,alpha'-dimethylglycyl-alpha,alpha'-dimethylglycyl-alpha,alpha'-dimethylglycine methyl ester) amide disulfide