InChI=1/C21H21N3O4/c25-20(15-6-9-18(10-7-15)24(27)28)22-17-8-5-14-11-12-23(19(14)13-17)21(26)16-3-1-2-4-16/h5-10,13,16H,1-4,11-12H2,(H,22,25)/f/h22H 603CA446BB68C396