InChI=1/C21H25NO5/c1-6-26-21(25)20(24)22-15-9-13(4)19(14(5)10-15)27-16-7-8-18(23)17(11-16)12(2)3/h7-12,23H,6H2,1-5H3,(H,22,24)/f/h22H D1879CFB77B383B7