InChI=1S/C21H32O6S/c1-20-9-7-14(27-28(24,25)26)11-13(20)3-4-15-16-5-6-18(19(23)12-22)21(16,2)10-8-17(15)20/h3,14-18,22H,4-12H2,1-2H3,(H,24,25,26)/t14?,15-,16-,17-,18?,20-,21-/m0/s1