Standard InChI: InChI=1S/C20H20N2O5/c1-2-16-17(23)22(20(26)21-12-13-6-4-3-5-7-13)18(16)27-15-10-8-14(9-11-15)19(24)25/h3-11,16,18H,2,12H2,1H3,(H,21,26)(H,24,25)/t16-,18+/m1/s1
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2.Hagmann WK, Shah SK, Dorn CP, O'Grady LA, Hale JJ, Finke P, Thompson KR, Brause Ka, Ash BM, Weston H, Dahlgren M, Maycock AL, Dellea PS, Hand KM, Osinga DG, Bonney RJ, Davies P, Fletcher DS, Doherty JB. (1991) Prevention of human leukocyte elastase-mediated lung damage by 3-alkyl-4-azetidinones, 1 (10):[10.1016/S0960-894X(01)80463-7]
3.Hagmann WK, Thompson KR, Shah SK, Finke PE, Ashe BM, Weston H, Maycock AL, Doherty JB. (1992) The effect of N-acyl substituents on the stability of monocyclic -lactam inhibitors of human leukocyte elastase, 2 (7):[10.1016/S0960-894X(00)80390-X]
4.Wu YJ, Meanwell NA.. (2021) Geminal Diheteroatomic Motifs: Some Applications of Acetals, Ketals, and Their Sulfur and Nitrogen Homologues in Medicinal Chemistry and Drug Design., 64 (14.0):[PMID:34213340][10.1021/acs.jmedchem.1c00790]