Using CCc1nc2c(N)nc3cc(O)ccc3c2s1, BrCc1nc2ccccc2s1 to produce CCc1nc2c(N)nc3cc(OCc4nc5ccccc5s4)ccc3c2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.