InChI=1/C18H15NO3/c1-2-12-7-9-14(10-8-12)19-17(20)15-11-13-5-3-4-6-16(13)22-18(15)21/h3-11H,2H2,1H3,(H,19,20)/f/h19H 849ACEB936CB1F09