InChI=1S/C19H22O7S/c1-10-6-13-7-15(20)16(21)9-14(13)19(11(10)2)12-4-5-17(18(8-12)25-3)26-27(22,23)24/h4-5,7-11,19-21H,6H2,1-3H3,(H,22,23,24)