InChI=1S/C15H23N3O4/c16-8-2-1-3-12(17)14(20)18-13(15(21)22)9-10-4-6-11(19)7-5-10/h4-7,12-13,19H,1-3,8-9,16-17H2,(H,18,20)(H,21,22)/t12-,13-/m0/s1