InChI=1S/C22H24O7/c1-24-19-9-14(10-20(25-2)21(19)26-3)6-15-11-27-22(23)16(15)7-13-4-5-17-18(8-13)29-12-28-17/h4-5,8-10,15-16H,6-7,11-12H2,1-3H3