Using C#CCBr, O=C1Nc2cc(Br)ccc2N2CCc3cccc1c32 to produce C#CCN1C(=O)c2cccc3c2N(CC3)c2ccc(Br)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.