Using CCC(C)(C(=O)OC)N1COC(C)=C(c2ccccc2)C1=O to produce CCC(C)(C(=O)O)N1COC(C)=C(c2ccccc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.