InChI=1/C21H20N2O4/c1-12-4-6-14(7-5-12)22-21(26)15-11-19(25)23-16-9-13(10-17(24)20(15)16)18-3-2-8-27-18/h2-8,11,13,15,20,25H,9-10H2,1H3,(H,22,26)/t13-,15-,20+/m1/s1/f/h22H 3D52C115240FE1DE