InChI=1/C21H20N2O4S/c1-26-18-9-3-2-8-17(18)20(25)19(23-10-4-6-15(13-23)14-24)21(28)22-12-16-7-5-11-27-16/h2-11,13,24H,12,14H2,1H3,(H-,22,25,28)/f/h22H/b21-19-	849DAEE4BD2C7136