InChI=1/C21H18N2O5/c1-13(15-4-2-3-14(7-15)10-22)28-21(25)16-8-20(24)23(11-16)17-5-6-18-19(9-17)27-12-26-18/h2-7,9,13,16H,8,11-12H2,1H3/t13-,16+/m1/s1	5536E084286B2E6B