Using COC(=O)c1cc(Br)cc(OCC(=O)O)c1, Nc1ccncc1 to produce COC(=O)c1cc(Br)cc(OCC(=O)Nc2ccncc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.