InChI=1S/C19H24O7/c1-7-5-18-6-8(7)3-4-9(18)19-12(10(18)15(23)24)17(2,16(25)26-19)13(21)11(20)14(19)22/h8-14,20-22H,1,3-6H2,2H3,(H,23,24)