Using CCOC(=O)OC(C)Cl, O=C(C=Cc1cccs1)Nc1ccccc1C(=O)O to produce CCOC(=O)OC(C)OC(=O)c1ccccc1NC(=O)C=Cc1cccs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.