InChI=1/C20H17N3O6/c24-17(22-12-5-6-15-16(9-12)29-8-7-28-15)10-21-18(25)11-23-19(26)13-3-1-2-4-14(13)20(23)27/h1-6,9H,7-8,10-11H2,(H,21,25)(H,22,24)/f/h21-22H A8A94110F2F32FA7