InChI=1S/C28H44N4O5/c1-16(2)15-22(32(7)8)26(34)31-24-25(17(3)4)37-21-11-9-20(10-12-21)13-14-29-27(35)23(30-28(24)36)18(5)19(6)33/h9-14,16-19,22-25,33H,15H2,1-8H3,(H,29,35)(H,30,36)(H,31,34)/b14-13-