InChI=1/C21H22N2O2/c1-3-19(25)23-10-9-16-17-11-13(2)7-8-18(17)22-20(16)21(23)14-5-4-6-15(24)12-14/h4-8,11-12,21-22,24H,3,9-10H2,1-2H3/t21-/m0/s1 ADD234D9D3D63DFF