Using S=C=Nc1c(Cl)cccc1Cl, CNc1ccc(C(=O)OC)cc1N to produce Cn1c(Nc2c(Cl)cccc2Cl)nc2cc(C(=O)O)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.