Using CCCCCc1ccc(-c2ccc(C3CCC(C#N)(CCC)CC3)cc2)cc1, CO to produce CCCCCc1ccc(-c2ccc(C3CCC(C=O)(CCC)CC3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.