Using CCOP(=O)(OCC)C(CC)C(=O)OC, CC(C)(C)OC(=O)c1ccc(C=O)s1 to produce CC/C(=C\c1ccc(C(=O)OC(C)(C)C)s1)C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.