InChI=1/C13H15N3O4/c14-13(18)10-3-4-11(12(6-10)16(19)20)15-5-1-2-9(7-15)8-17/h3-4,6,8-9H,1-2,5,7H2,(H2,14,18)/t9-/m1/s1/f/h14H2 35EC506618D50853