InChI=1/C13H15N3O5/c1-3-13(11(17)14-12(18)15-13)8-5-6-10(21-4-2)9(7-8)16(19)20/h5-7H,3-4H2,1-2H3,(H2,14,15,17,18)/t13-/m0/s1/f/h14-15H 06DF974D74B26E4B