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