InChI=1S/C20H28O7S/c1-19-8-9-20(21)14(13(19)6-7-18(19)27-28(22,23)24)5-4-12-10-16(25-2)17(26-3)11-15(12)20/h10-11,13-14,18,21H,4-9H2,1-3H3,(H,22,23,24)/t13?,14?,18?,19-,20?/m0/s1