InChI=1/C21H25N3O4/c1-28-18-9-7-17(8-10-18)19(25)5-2-6-20(26)23-13-11-21(27)24-15-16-4-3-12-22-14-16/h3-4,7-10,12,14H,2,5-6,11,13,15H2,1H3,(H,23,26)(H,24,27)/f/h23-24H D397DAF78738AEF0