InChI=1/C21H18N2O4/c24-20-15-5-3-4-13(15)14-9-8-12(10-16(14)23-20)22-21(25)19-11-26-17-6-1-2-7-18(17)27-19/h1-2,6-10,19H,3-5,11H2,(H,22,25)(H,23,24)/t19-/m1/s1/f/h22-23H	4503580488D85771