Using CC(C)CC(=O)Cl, Cc1ccc2c(c1C)OC(C(=O)O)C2 to produce Cc1c(C(=O)CC(C)C)cc2c(c1C)OC(C(=O)O)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.