InChI=1S/C28H44N4O5/c1-17(2)16-22(32(6)7)26(34)31-24-25(18(3)4)37-21-10-8-20(9-11-21)12-14-29-27(35)23(30-28(24)36)19(5)13-15-33/h8-12,14,17-19,22-25,33H,13,15-16H2,1-7H3,(H,29,35)(H,30,36)(H,31,34)/b14-12-