D-Ornithine lactam is a building block.^1,2It has been used in the synthesis of hepatitis C virus (HCV) non-structural protein 5B (NS5B) inhibitors, as well as αVβ3 integrin receptor antagonists.

1.Li, P., Dorsch, W., Lauffer, D.J., et al.Discovery of novel allosteric HCV NS5B inhibitors. 2. Lactam-containing thiophene carboxylatesACS Med. Chem. Lett.8(2)251-255(2017) 2.Kubota, D., Ishikawa, M., Ishikawa, M., et al.Tricyclic pharmacophore-based molecules as novel integrin ɑvβ3 antagonists. Part IV: Preliminary control of ɑvβ3 selectivity by meta-oriented substitutionBioorg. Med. Chem.14(12)4158-4181(2006)