InChI=1S/C15H21N3O4/c1-9(16)13(19)18-12(8-11-6-4-3-5-7-11)14(20)17-10(2)15(21)22/h3-7,9-10,12H,8,16H2,1-2H3,(H,17,20)(H,18,19)(H,21,22)