Using NC1=Nc2ccccc2C1(O)c1cccc(Cl)c1, BrCCCCBr to produce OC1(c2cccc(Cl)c2)C2=NCCCCN2c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.