Using COc1ccc(F)c(-c2ccc(OC(=O)OC(C)(C)C)cc2C#CC(C)(C)OC)c1 to produce COc1ccc(F)c(-c2ccc(OC(=O)OC(C)(C)C)cc2CCC(C)(C)OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.