InChI=1S/C22H24N2O3/c1-13(2)5-7-15-9-12-18(26)22-19(15)23-20-17(25)11-10-16(8-6-14(3)4)21(20)24(22)27/h5-6,9-12,26-27H,7-8H2,1-4H3