Using Cl[C@@H]1c2ccccc2C[C@H]2N=C(c3ccccc3)O[C@@H]12, COCCO to produce OC1c2ccccc2C[C@H]2N=C(c3ccccc3)O[C@@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.