Using CCc1nc2c(C)cc(C)nc2[nH]1, ClC1CCc2cc(Br)cnc21 to produce CCc1nc2c(C)cc(C)nc2n1C1CCc2cc(Br)cnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.