InChI=1S/C32H45NO4/c1-19-8-6-9-29-32(13-7-15-33-29)14-12-25(28-18-22(4)31(35)37-28)23(5)26(32)17-20(2)27(34)11-10-24-16-21(3)30(19)36-24/h8,17-18,21,24,26-28,30,34H,6-7,9-16H2,1-5H3/b19-8+,20-17+