InChI=1/C15H20N2O4/c1-10(12-3-2-6-19-12)16-15(18)17-11-4-5-13-14(9-11)21-8-7-20-13/h4-5,9-10,12H,2-3,6-8H2,1H3,(H2,16,17,18)/t10-,12-/m1/s1/f/h16-17H 8BCBD7A4BA186CE1