Using COc1nc2cc(Br)cc(CN)c2nc1OC, O=C(O)c1ccco1 to produce COc1nc2cc(Br)cc(CNC(=O)c3ccco3)c2nc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.