InChI=1S/C22H22N2O3/c23-21(25)15-7-4-6-14(12-15)13-24-19-11-3-1-2-8-16(19)17-9-5-10-18(20(17)24)22(26)27/h4-7,9-10,12H,1-3,8,11,13H2,(H2,23,25)(H,26,27)