Using CCOC(=O)C(C#N)=C(O)C(CC)CC, CC(C)(C)C(=O)Cl to produce CCOC(=O)C(C#N)=C(OC(=O)C(C)(C)C)C(CC)CC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.