Using CC(C)(C)OC(=O)C(C(=O)O)C(CCCc1ccc(Cl)cc1)C(=O)N1CCCCC1 to produce C=C(C(=O)OC(C)(C)C)C(CCCc1ccc(Cl)cc1)C(=O)N1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.