InChI=1/C15H17N3O5/c1-23-14(19)7-5-10-4-6-11(13(9-10)18(21)22)17-12-3-2-8-16-15(12)20/h4-7,9,12,17H,2-3,8H2,1H3,(H,16,20)/b7-5+/t12-/m1/s1/f/h16H 1D898CE4AE16F23B