Using Cc1cnc(N)c(Br)c1, O=c1c(Cl)nc(Cl)cn1Cc1ccccc1 to produce Cc1cnc(Nc2nc(Cl)cn(Cc3ccccc3)c2=O)c(Br)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.