InChI=1/C16H17N3O4/c1-16(2)7-11-13(12(20)8-16)14(18-15(21)17-11)9-4-3-5-10(6-9)19(22)23/h3-6,14H,7-8H2,1-2H3,(H2,17,18,21)/t14-/m0/s1/f/h17-18H A0FF41D79C4BF839