InChI=1/C22H20N2O3/c1-15-19(16(2)24(23-15)18-6-4-3-5-7-18)9-10-20(25)17-8-11-21-22(14-17)27-13-12-26-21/h3-11,14H,12-13H2,1-2H3/b10-9+ 28C2B404FA671004