InChI=1S/C25H29N3O7/c1-5-15(14(4)25(34)35)18(26)10-19-12(2)16(6-8-22(29)30)20(27-19)11-21-17(7-9-23(31)32)13(3)24(33)28-21/h5,10-11,27H,1,6-9,26H2,2-4H3,(H,28,33)(H,29,30)(H,31,32)(H,34,35)/b15-14?,18-10+,21-11+