InChI=1S/C15H24O5S/c1-10-3-5-13(15-11(2)4-6-14(10)15)7-12(8-16)9-20-21(17,18)19/h7,10,13-14,16H,3-6,8-9H2,1-2H3,(H,17,18,19)/b12-7-