InChI=1/C19H26N2O3/c1-13-5-7-15(8-6-13)21-10-9-16(18(21)23)17(22)20-11-14(2)24-19(3,4)12-20/h5-8,14,16H,9-12H2,1-4H3/t14-,16-/m1/s1 9B9D2A9208003AD9