InChI=1/C15H16N2O3/c1-2-11-5-7-12(8-6-11)20-10-14(19)17-15-13(18)4-3-9-16-15/h3-9,18H,2,10H2,1H3,(H,16,17,19)/f/h17H 4FD7FB835B0949B7