Using O=C1CCC(=O)CC1, Brc1ccc(Nc2ccc(Br)cc2)cc1 to produce Brc1ccc(N(c2ccccc2)c2ccc(Br)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.