InChI=1/C14H17N3O4/c1-7(2)13(8(3)18)10-4-11-9(5-12(10)17(20)21)14(19)16-6-15-11/h4-8,13,18H,1-3H3,(H,15,16,19)/t8-,13+/m0/s1/f/h16H DDCBEAD18DF25D3F