InChI=1S/C21H28N2O9/c24-14-3-1-2-13-10-6-11(9-23(13)14)21(30)7-12(4-5-22(21)8-10)31-20-17(27)15(25)16(26)18(32-20)19(28)29/h1-3,10-12,15-18,20,25-27,30H,4-9H2,(H,28,29)