Using O=C([O-])[O-], COCOc1ccc(Br)cc1C(C#N)c1ncccc1OCOC to produce COCOc1ccc(Br)cc1C(=O)c1ncccc1OCOC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.