Using O=C1CCC(=O)N1Br, Brc1ccccc1-n1cnnc1-c1ccc(-c2ccccc2)nc1 to produce Brc1ccccc1-n1c(Br)nnc1-c1ccc(-c2ccccc2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.