Using O=C1CCC(=O)N1Br, CCCc1oc(=O)c2ccccc2c1-c1ccccc1 to produce CCC(Br)c1oc(=O)c2ccccc2c1-c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.