Using CCOC(=O)C[C@@H](C)/C=C/C[C@@H](C)COC(C)(C)C to produce CCOC(=O)C[C@@H](C)CCC[C@@H](C)COC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.