Using O=C1CN2CCC1CC2, CCCCC(CC)COc1ccc(C=O)cc1 to produce CCCCC(CC)COc1ccc(C=C2C(=O)C3CCN2CC3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.