InChI=1/C15H18N2O3/c1-19-14-4-3-11(7-13(14)18)9-16-10-12-5-6-17-15(8-12)20-2/h3-8,16,18H,9-10H2,1-2H3/p+1/fC15H19N2O3/h16H/q+1 353FCEBC2E5F68CB