InChI=1S/C21H24O7/c22-16-17(23)19(20(25)26)28-21(18(16)24)27-15-12-5-4-10-14(15)11-6-9-13-7-2-1-3-8-13/h1-5,7-8,10,12,16-19,21-24H,6,9,11H2,(H,25,26)