Using CCOC(=O)C(CC=Cc1ccccc1)(Cc1cccc2ccccc12)C(=O)OCC to produce CCOC(=O)C(CC=Cc1ccccc1)Cc1cccc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.