Standard InChI: InChI=1S/C18H22N2O9/c21-14(22)7-6-12(16(25)26)19-18(29)20-13(17(27)28)9-11(15(23)24)8-10-4-2-1-3-5-10/h1-5,11-13H,6-9H2,(H,21,22)(H,23,24)(H,25,26)(H,27,28)(H2,19,20,29)/t11-,12+,13+/m1/s1
1.Kozikowski AP, Zhang J, Nan F, Petukhov PA, Grajkowska E, Wroblewski JT, Yamamoto T, Bzdega T, Wroblewska B, Neale JH.. (2004) Synthesis of urea-based inhibitors as active site probes of glutamate carboxypeptidase II: efficacy as analgesic agents., 47 (7):[PMID:15027864][10.1021/jm0306226]