InChI=1S/C15H20N2O12/c18-5-1-2-17(15(26)16-5)12-9(22)6(19)4(28-12)3-27-14-10(23)7(20)8(21)11(29-14)13(24)25/h1-2,4,6-12,14,19-23H,3H2,(H,24,25)(H,16,18,26)