InChI=1/C21H21NO5S/c1-3-12-22-13-18(14-8-10-17(11-9-14)28(2,26)27)19(20(22)23)15-4-6-16(7-5-15)21(24)25/h4-11H,3,12-13H2,1-2H3,(H,24,25)/p-1/fC21H20NO5S/q-1 2E835FE04178CA1D