InChI=1/C18H24N2O4/c1-4-5-6-7-8-13-9-10-15(14(21)11-13)24-18-19-16(22-2)12-17(20-18)23-3/h9-12,21H,4-8H2,1-3H3 1EFDBD53F1C0C1AD