InChI=1/C20H28N2O2/c1-13(2)21-19(15-5-9-17(23)10-6-15)20(22-14(3)4)16-7-11-18(24)12-8-16/h5-14,19-24H,1-4H3/p+1/t19-,20-/m0/s1/fC20H29N2O2/h21H/q+1 DEB962F60376A462