Using COC(=O)c1cccc(C#CC2(c3ccc(OC)c(OC4CCCC4)c3)CCC3(CC2)OCCO3)c1 to produce COC(=O)c1cccc(C#CC2(c3ccc(OC)c(OC4CCCC4)c3)CCC(=O)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.