Using Cc1ccc(N(c2ccccc2)c2ccc(C)cc2C)c(C)c1, O=C1CCC(=O)N1Br to produce Cc1ccc(N(c2ccc(Br)cc2)c2ccc(C)cc2C)c(C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.