InChI=1S/C21H32O7S/c1-20-8-7-13(28-29(25,26)27)9-12(20)3-4-14-15-5-6-16(18(24)11-22)21(15,2)10-17(23)19(14)20/h12-16,19,22H,3-11H2,1-2H3,(H,25,26,27)/t12?,13?,14?,15?,16?,19?,20-,21-/m0/s1