Using CCOC(=O)C(=Cc1cc(C(=O)OCC)c(=O)n2ccccc12)C(=O)OCC to produce CCOC(=O)c1cc(CC(C(=O)OCC)C(=O)OCC)c2ccccn2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.