InChI=1S/C20H28O7S/c1-20-15(6-7-19(20)27-28(22,23)24)12-5-4-11-8-16(25-2)17(26-3)9-13(11)14(12)10-18(20)21/h8-9,12,14-15,18-19,21H,4-7,10H2,1-3H3,(H,22,23,24)/t12?,14?,15?,18?,19?,20-/m1/s1