InChI=1/C18H16N2O3/c21-17-14-8-4-5-12-9-10-20(15(11-19-17)16(12)14)18(22)23-13-6-2-1-3-7-13/h1-8,15H,9-11H2,(H,19,21)/t15-/m1/s1/f/h19H	8F68B2F799F0BB2B