Using CCOC(=O)CCCCCOc1cc2c(c(Cl)c1Cl)C(=O)C(C)(C1CCCC1)C2 to produce CC1(C2CCCC2)Cc2cc(OCCCCCC(=O)O)c(Cl)c(Cl)c2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.