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