InChI=1/C20H17NO5S/c1-26-16-10-6-14(7-11-16)15-8-12-17(13-9-15)27(24,25)19-5-3-2-4-18(19)20(22)21-23/h2-13,23H,1H3,(H,21,22)/f/h21H	C052C4C241CCE0A1