InChI=1S/C15H24O5S/c1-10(9-20-21(17,18)19)5-4-6-13(2)11-7-12-14(13,3)15(12,16)8-11/h5,11-12,16H,4,6-9H2,1-3H3,(H,17,18,19)/b10-5-