InChI=1S/C18H26N2O12/c1-17(13(21)22)27-7-11(8-28-17)31-15(25)19-3-5-20(6-4-19)16(26)32-12-9-29-18(2,14(23)24)30-10-12/h11-12H,3-10H2,1-2H3,(H,21,22)(H,23,24)/t11-,12-,17+,18+