Using Clc1nc2ccccc2s1, O=C([O-])c1cc2cc(O)ccc2[nH]1 to produce O=C(O)c1cc2cc(Oc3nc4ccccc4s3)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.