Using O=C1CCC(=O)N1Br, Cc1cccc(N2C(=O)c3ccccc3C2=O)n1 to produce O=C1c2ccccc2C(=O)N1c1cccc(CBr)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.