InChI=1/C18H19N5O5/c1-18(2)16(27)23(17(28)21-18)8-7-13(24)22-19-9-12-10-5-3-4-6-11(10)14(25)20-15(12)26/h3-6,9,19H,7-8H2,1-2H3,(H,21,28)(H,22,24)(H,20,25,26)/b12-9+/f/h20-22H 3CA55AD146B6F2AB