InChI=1/C15H18N2O3/c18-14(12-4-1-7-16-12)17-8-2-3-10-9-11(15(19)20)5-6-13(10)17/h5-6,9,12,16H,1-4,7-8H2,(H,19,20)/t12-/m1/s1/f/h16H FBBDE6847D79F32C