1. Peet NP, Angelastro MR, Burkhart JP: Novel orally-active elastase inhibitors. Book Novel orally-active elastase inhibitors. 1997, Munich, Germany: European Patent Office, EP Patent 0,529,568
2. Colson E, Wallach J, Hauteville M: Synthesis and anti-elastase properties of 6-amino-2-phenyl-4H−3, 1-benzoxazin-4-one aminoacyl and dipeptidyl derivatives. Biochimie. 2005, 87: 223-230. 10.1016/j.biochi.2004.10.015.
3. Oshida J, Kawabata H, Kato Y, Kokubo M, Uejima Y, Sato O, Fujii K: 4H-3, 1-benzoxazin-4-one compound and elastase inhibitor composition containing the same. Book 4H-3, 1-benzoxaz-4-one compound and elastase hibitor composition contag the same. 1992, EP Patent 0,466,944
4. Krantz A, Spencer R, Tam T: 4H-3, 1-benzoxazin-4-ones and related compounds and use as enzyme inhibitors. Book 4H-3, 1-benzoxaz-4-ones and related compounds and use as enzyme hibitors. 1987, U.S. Patent and Trademark Office: Washington, DC, U.S. Patent No. 4,657,893
5. Besson T, Rees CW, Cottenceau G, Pons AM: Antimicrobial evaluation of 3, 1-benzoxazin-4-ones, 3, 1-benzothiazin-4-ones, 4-alkoxyquinazolin-2-carbonitriles and < i > N −arylimino-1, 2, 3-dithiazoles. Bioorg Med Chem Lett. 1996, 6: 2343-2348. 10.1016/0960-894X(96)00423-4.