InChI=1S/C19H25NO10/c1-9-8-10(28-18(9)27)4-2-3-6-20-7-5-11(16(20)24)29-19-14(23)12(21)13(22)15(30-19)17(25)26/h4,8,11-15,19,21-23H,2-3,5-7H2,1H3,(H,25,26)/b10-4+