Using CNCCN(C)c1ccc(F)cc1F, Nc1nc(Cl)c2ccn(CCBr)c2n1 to produce CN(CCN(C)c1ccc(F)cc1F)CCn1ccc2c(Cl)nc(N)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.