Using O=C1CCC(=O)N1Br, CCOC(=O)COc1cc2c(c(Cl)c1Cl)C(=O)C(CC)C2 to produce CCOC(=O)COc1cc2c(c(Cl)c1Cl)C(=O)C(CC)C2Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.