Using OCc1ccccc1, CS(=O)(=O)c1cc(-c2ccccn2)nc(-c2cccc(-c3ccccc3)n2)c1 to produce c1ccc(COc2cc(-c3ccccn3)nc(-c3cccc(-c4ccccc4)n3)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.