Using O=C1CCC(=O)N1Br, CCc1cnc2c(NC(=O)c3c(Cl)cccc3Cl)cccc2c1CCO to produce CCc1cnc2c(NC(=O)c3c(Cl)cccc3Cl)cccc2c1CCBr, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.