InChI=1/C20H24N2O2/c1-4-14-7-6-10-17-18(14)12-22(20(24)21(2)3)13-19(17)15-8-5-9-16(23)11-15/h5-11,19,23H,4,12-13H2,1-3H3/t19-/m0/s1 363F70A94DBF4300