InChI=1/C28H29N3O/c1-28(2,3)21-12-10-18(11-13-21)20-15-24-26(25(32)16-20)27(19-7-6-14-29-17-19)31-23-9-5-4-8-22(23)30-24/h4-14,17,20,27,30-31H,15-16H2,1-3H3/t20-,27-/m0/s1 6EEA18EBB3EC961B