InChI=1S/C17H22O11/c18-8(1-2-11(20)21)3-7-4-9(19)6-10(5-7)27-17-14(24)12(22)13(23)15(28-17)16(25)26/h4-6,8,12-15,17-19,22-24H,1-3H2,(H,20,21)(H,25,26)/t8?,12-,13?,14?,15-,17+/m0/s1