InChI=1/C15H19N3O4/c1-9-6-14(17-11-5-3-2-4-10(9)11)18-16-7-12(20)15(22)13(21)8-19/h2-7,12-13,15,19-22H,8H2,1H3,(H,17,18)/b16-7+/t12-,13-,15+/m0/s1/f/h18H 4A8EE1DDDCEE123D