InChI=1S/C22H25N3O3/c1-22(2,21(26)27)15-24-11-13-25(14-12-24)20-16-7-3-5-9-18(16)28-19-10-6-4-8-17(19)23-20/h3-10H,11-15H2,1-2H3,(H,26,27)