InChI=1S/C25H27N3O2/c1-15-2-9-20(10-3-15)26-14-16-4-11-21-19(12-16)13-22-23(27-28-24(21)22)17-5-7-18(8-6-17)25(29)30/h4-8,11-12,15,20,26H,2-3,9-10,13-14H2,1H3,(H,27,28)(H,29,30)/t15-,20+