InChI=1S/C21H32O8/c1-9(2)11-5-6-12-13(22)7-14(10(3)21(12,4)8-11)28-20-17(25)15(23)16(24)18(29-20)19(26)27/h6,10-11,13-18,20,22-25H,1,5,7-8H2,2-4H3,(H,26,27)/t10?,11?,13?,14?,15?,16?,17?,18?,20?,21-/m1/s1