InChI=1/C21H23NO4/c1-25-20-13-17(19(24)14-21(20)26-2)18(23)9-8-15-6-5-7-16(12-15)22-10-3-4-11-22/h5-9,12-14,24H,3-4,10-11H2,1-2H3/b9-8+ EDEC487AC6EA9AB9