InChI=1/C20H28N2O3/c1-14-11-15(2)17-5-4-8-22(18(17)12-14)13-19(23)21-9-6-16(7-10-21)20(24)25-3/h11-12,16H,4-10,13H2,1-3H3 DE7904E7C2F67AAD