InChI=1S/C28H44N4O5/c1-9-18(4)22-26(34)29-15-14-19-10-12-20(13-11-19)37-24(17(2)3)23(27(35)30-22)31-25(33)21(32(7)8)16-28(5,6)36/h10-15,17-18,21-24,36H,9,16H2,1-8H3,(H,29,34)(H,30,35)(H,31,33)/b15-14-