InChI=1/C22H19NO5/c1-12-11-27-19-10-20-17(8-16(12)19)13(2)18(22(25)28-20)9-21(24)23-14-4-6-15(26-3)7-5-14/h4-8,10-11H,9H2,1-3H3,(H,23,24)/f/h23H 7B25CA4DCB904CE0