InChI=1/C20H24N2O4/c1-24-19-6-2-3-7-20(19)25-12-11-21-13-15(23)14-26-18-8-4-5-17-16(18)9-10-22-17/h2-10,15,21-23H,11-14H2,1H3/t15-/m1/s1 D0F46DFFB11A9F22