Using C=C(c1ccc(COc2ccc(C(C)=O)c(O)c2CCC)cc1)c1cccc(C#N)c1 to produce CCCc1c(OCc2ccc(C(C)c3cccc(C#N)c3)cc2)ccc(C(C)=O)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.