Using O=C1Cc2ccc(C(=O)c3ccc(NC(=O)c4cccs4)cc3)cc2N1, CCOC=O to produce O=C1Nc2cc(C(=O)c3ccc(NC(=O)c4cccs4)cc3)ccc2C1=CO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.