InChI=1S/C19H24O7/c1-8-5-17-7-18(8,25)4-3-10(17)19-12(11(17)14(22)23)16(2,15(24)26-19)6-9(20)13(19)21/h9-13,20-21,25H,1,3-7H2,2H3,(H,22,23)