InChI=1/C22H20N2O5S/c1-14-8-4-6-10-17(14)28-20-13-19-15(12-21(20)30(26,27)24(2)3)22(25)23-16-9-5-7-11-18(16)29-19/h4-13H,1-3H3,(H,23,25)/f/h23H B291B98DB3814DF8