InChI=1/C15H18N2O3/c1-10-12(9-14(19)20-2)15(16-7-8-18)11-5-3-4-6-13(11)17-10/h3-6,18H,7-9H2,1-2H3,(H,16,17)/p+1/fC15H19N2O3/h16-17H/q+1 97F3FBFADEF4520D