2-[(1-Benzyl-aziridine-2-carbonyl)-amino]-pentanedioic acid dimethyl ester
2-[(1-Benzyl-aziridine-2-carbonyl)-amino]-3-(4-hydroxy-phenyl)-propionic acid methyl ester
2-[(1-Benzyl-aziridine-2-carbonyl)-amino]-3-phenyl-propionic acid methyl ester
2-[(1-Benzyl-aziridine-2-carbonyl)-amino]-succinic acid dimethyl ester
2-[(1-Benzyl-aziridine-2-carbonyl)-amino]-4-methylsulfanyl-butyric acid methyl ester