InChI=1S/C19H25NO8/c21-13(9-11-3-1-2-8-20-11)10-4-6-12(7-5-10)27-19-16(24)14(22)15(23)17(28-19)18(25)26/h4-7,11,14-17,19-20,22-24H,1-3,8-9H2,(H,25,26)