InChI=1/C15H18N2O3/c18-15(11-3-4-13-14(8-11)20-10-19-13)17-7-6-16-5-1-2-12(16)9-17/h3-4,8,12H,1-2,5-7,9-10H2/p+1/t12-/m0/s1/fC15H19N2O3/h16H/q+1 7896B35D4B5EA960