(S)-4-Methylsulfanyl-2-[(5-nitro-naphthalene-1-carbonyl)-amino]-butyric acid methyl ester
(S)-2-[(5-Amino-naphthalene-1-carbonyl)-amino]-4-methylsulfanyl-butyric acid methyl ester
5-nitro-1-naphthoic acid
Met-OMe
(S)-2-{[5-((R)-2-tert-Butoxycarbonylamino-3-tritylsulfanyl-propionylamino)-naphthalene-1-carbonyl]-amino}-4-methylsulfanyl-butyric acid methyl ester