InChI=1/C12H15N3O4/c1-7(6-19-2)13-10-5-9-8(4-12(16)14-9)3-11(10)15(17)18/h3,5,7,13H,4,6H2,1-2H3,(H,14,16)/t7-/m1/s1/f/h14H 1A4FE43EC15BE3B9