InChI=1S/C29H34N2O7/c1-30-9-7-16-12-22(36-3)23(14-19(16)15-30)38-29-25-17(13-24(37-4)28(29)35)8-10-31(2)26(25)27(34)18-5-6-20(32)21(33)11-18/h5-6,11-14,26-27,32-35H,7-10,15H2,1-4H3