InChI=1/C18H16N2O3/c1-2-22-12-8-6-11(7-9-12)16-13(10-19)18(20)23-15-5-3-4-14(21)17(15)16/h2,6-9,16H,1,3-5,20H2/t16-/m1/s1 BAD5E95FE3CA7BE2