InChI=1S/C26H33N3O3/c1-6-26(4,5)23-18(14-19-25(32)29-13-7-8-20(29)24(31)27-19)16-11-12-21(30)17(22(16)28-23)10-9-15(2)3/h6,9,11-12,19-20,28,30H,1,7-8,10,13-14H2,2-5H3,(H,27,31)/t19-,20-/m0/s1