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