InChI=1/C18H15NO3/c1-10-7-16(21)19-14-6-5-12-13(17(10)14)9-22-15-4-2-3-11(8-20)18(12)15/h2-7,20H,8-9H2,1H3,(H,19,21)/f/h19H 9CE0E2E2BABA17B1