Using Cn1c(C(F)(F)F)cc(=O)n(-c2ccc3snc(COCC(=O)O)c3c2)c1=O, CS(N)(=O)=O to produce Cn1c(C(F)(F)F)cc(=O)n(-c2ccc3snc(COCC(=O)NS(C)(=O)=O)c3c2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.