Using CN(C)C(=O)CN, COCCn1c(Nc2nc3ccc(Cl)cc3s2)nc2cc(C(=O)O)ccc21 to produce COCCn1c(Nc2nc3ccc(Cl)cc3s2)nc2cc(C(=O)NCC(=O)N(C)C)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.