InChI=1/C21H28N2O2/c1-5-25-19-13-9-12-18(14-19)16(4)23-20(21(24)22-15(2)3)17-10-7-6-8-11-17/h6-16,20,23H,5H2,1-4H3,(H,22,24)/t16-,20+/m0/s1/f/h22H EE533BACFC2EEC9E