Using O=C(O)c1ccc(Sc2ccncc2)cc1C(=O)O, CCCCOC(=O)CN to produce CCCCOC(=O)CN1C(=O)c2ccc(Sc3ccncc3)cc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.