InChI=1S/C15H24O6S/c1-9(2)13-12(16)8-10(3)6-5-7-11(4)14(17)15(13)21-22(18,19)20/h6,9,11,13,15H,5,7-8H2,1-4H3,(H,18,19,20)/b10-6-