InChI=1S/C20H28O7S/c1-20-7-6-12-13(15(20)10-18(19(20)21)27-28(22,23)24)5-4-11-8-16(25-2)17(26-3)9-14(11)12/h8-9,12-13,15,18-19,21H,4-7,10H2,1-3H3,(H,22,23,24)/t12?,13?,15?,18?,19?,20-/m0/s1