InChI=1S/C22H25N3O4/c1-28-19-7-3-16(14-20(19)29-2)22(27)25-11-9-24(10-12-25)17-5-6-18-15(13-17)4-8-21(26)23-18/h3,5-7,13-14H,4,8-12H2,1-2H3,(H,23,26)