InChI=1/C14H14N2O2/c1-2-8-15-13(14(17)18)11-7-3-5-10-6-4-9-16-12(10)11/h2-7,9,13,15H,1,8H2,(H,17,18)/t13-/m1/s1/f/h15H DB6A936D4C4BFDB8