InChI=1/C15H14N2O2/c1-9-6-10(8-18)16-14(9)7-12-11-4-2-3-5-13(11)17-15(12)19/h2-7,16,18H,8H2,1H3,(H,17,19)/b12-7-/f/h17H B18A5D2EABFE57FD