InChI=1S/C19H22N2O9/c1-9-6-10(27-2)7-11(28-3)14(9)18(25)30-16-12(8-22)29-17(15(16)24)21-5-4-13(23)20-19(21)26/h4-7,12,15-17,22,24H,8H2,1-3H3,(H,20,23,26)/t12-,15-,16-,17-/m1/s1