Using C#CCBr, O=C1CN=C(c2ccccc2)c2cc(Cl)ccc2N1 to produce C#CCN1C(=O)CN=C(c2ccccc2)c2cc(Cl)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.