InChI=1/C27H27N3O3/c1-4-18-10-14-21(15-11-18)29-26(31)23-24(19-12-16-20(17-13-19)28(2)3)30(33-25(23)27(29)32)22-8-6-5-7-9-22/h5-17,23-25H,4H2,1-3H3/t23-,24+,25+/m1/s1 A1B80485D2E8192C