Using CCC#CCOc1cc2c(cc1/C=C/C=C/C(C)=C/C(=O)OCC)C(C)(C)CCC2(C)C to produce CCC#CCOc1cc2c(cc1/C=C/C=C/C(C)=C/C(=O)O)C(C)(C)CCC2(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.