InChI=1/C20H28N2O2/c1-4-13-21-16(2)14-17-9-8-12-19(15-17)24-20(23)22(3)18-10-6-5-7-11-18/h1,8-9,12,15-16,18,21H,5-7,10-11,13-14H2,2-3H3/p+1/t16-/m1/s1/fC20H29N2O2/h21H/q+1 892E241616D6C8BA