上游原料
D-cysteine; (S)-2-Amino-3-mercaptopropionic acid1,5-dichloropentanetert-butyl benzyloxycarbamatetert-butyl benzyloxy(5-chloropentyl)carbamateO-benzyl-N-(5-chloropentyl)hydroxylamine; 1-([[(5-chloropentyl)amino]oxy]methyl)benzeneN-(benzyloxy)-N-(5-chloropentyl)acetamideN-(benzyloxy)acetamidetert-butyl 5-[acetyl(benzyloxy)amino]pentyl(benzyloxy)carbamatetert-butyl 5-[acetyl(hydroxy)amino]pentyl(hydroxy)carbamateN-hydroxy-N-[5-(hydroxyamino)pentyl]acetamide(4S)-2-(3-hydroxy-2-pyridinyl)-4,5-dihydro-1,3-thiazole-4-carboxylic acid3-hydroxy-2-pyridinecarbonitrile