InChI=1S/C11H16O11/c1-2-11(9(17)18,10(19)20)22-8-5(14)3(12)4(13)6(21-8)7(15)16/h3-6,8,12-14H,2H2,1H3,(H,15,16)(H,17,18)(H,19,20)