InChI=1/C21H25NO5/c1-12(2)17-11-16(7-8-18(17)25-5)27-19-13(3)9-15(10-14(19)4)22-20(23)21(24)26-6/h7-12H,1-6H3,(H,22,23)/f/h22H 0A3D026D8AD4A9C3