N-(3-bromopropyl)-2-[2-[2-[[(2S,3R)-3-hydroxy-2-[(2-nitrophenyl)sulfanylamino]butanoyl]amino]ethyl]-1,3-thiazol-4-yl]-1,3-thiazole-4-carboxamide

N-(3-methylsulfanylpropyl)-2-[2-[2-[(2,2,2-trifluoroacetyl)amino]ethyl]-1,3-thiazol-4-yl]-1,3-thiazole-4-carboxamide

2'-{2-[(2S,3R)-3-Hydroxy-2-(2-nitro-phenylsulfanylamino)-butyrylamino]-ethyl}-[2,4']bithiazolyl-4-carboxylic acid (3-methylsulfanyl-propyl)-amide

2'-[2-((2S,3R)-2-Amino-3-hydroxy-butyrylamino)-ethyl]-[2,4']bithiazolyl-4-carboxylic acid (3-methylsulfanyl-propyl)-amide; hydrochloride

2'-[2-((2S,3R)-2-Amino-3-hydroxy-butyrylamino)-ethyl]-[2,4']bithiazolyl-4-carboxylic acid (3-bromo-propyl)-amide; hydrochloride