Using CCOCC, CN1CCC(=C2c3ccccc3CCc3ccc(C(=O)O)cc32)CC1 to produce CCOC(=O)c1ccc2c(c1)C(=C1CCN(C)CC1)c1ccccc1CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.