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