InChI=1/C21H22N2O6/c1-4-29-16-6-5-12(9-13(16)24)17(18-14(25)7-10(2)22-20(18)27)19-15(26)8-11(3)23-21(19)28/h5-9,17,24H,4H2,1-3H3,(H2,22,25,27)(H2,23,26,28)/p-2/fC21H20N2O6/h22-23H/q-2 16E6AC8D54A9679A