上游原料
(2S)-2-Amino-3-methyl-3-sulfanylbutyric acid; Penicillamine; 3-Mercapto-L-valine(4R)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid(4R)-3-(tert-butoxycarbonyl)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid(2-methylphenyl)methanamine; 2-methylbenzylaminetert-butyl (4R)-5,5-dimethyl-4-[[(2-methylbenzyl)amino]carbonyl]-1,3-thiazolidine-3-carboxylate(4R)-5,5-dimethyl-N-(2-methylbenzyl)-1,3-thiazolidine-4-carboxamide(2S,3S)-3-[(tert-butoxycarbonyl)amino]-2-methyl-4-phenylbutyric acidtert-butyl (1S,2S)-1-benzyl-3-((4R)-5,5-dimethyl-4-[[(2-methylbenzyl)amino]carbonyl]-1,3-thiazolidin-3-yl)-2-methyl-3-oxopropylcarbamate(4R)-3-[(2S,3S)-3-amino-2-methyl-4-phenylbutanoyl]-5,5-dimethyl-N-(2-methylbenzyl)-1,3-thiazolidine-4-carboxamide2-ethyl-3-hydroxybenzoic acid3-(acetoxy)-2-ethylbenzoic acid3-([[(1S,2S)-1-benzyl-3-((4R)-5,5-dimethyl-4-[[(2-methylbenzyl)amino]carbonyl]-1,3-thiazolidin-3-yl)-2-methyl-3-oxopropyl]amino]carbonyl)-2-ethylphenyl acetate