InChI=1S/C27H29N3O5/c31-18-25(32)23(14-13-20-8-3-1-4-9-20)29-26(33)24(16-21-10-5-2-6-11-21)30-27(34)35-19-22-12-7-15-28-17-22/h1-12,15,17,23-24,31H,13-14,16,18-19H2,(H,29,33)(H,30,34)/t23-,24-/m0/s1