InChI=1/C21H22N2O2/c1-4-20(24)23(19-8-6-5-7-15(19)3)13-17-12-16-10-9-14(2)11-18(16)22-21(17)25/h5-12,17H,4,13H2,1-3H3/p+1/t17-/m0/s1/fC21H23N2O2/h22H/q+1 C94866F164021F5F