InChI=1/C20H20ClN3O4/c1-10(2)22-20(27)19-17(11-4-6-12(28-3)7-5-11)18(23-24-19)13-8-14(21)16(26)9-15(13)25/h4-10,25-26H,1-3H3,(H,22,27)(H,23,24)/f/h22-23H F1E94FBBDEC5B052