Using O=C(O)c1ccc(Br)o1, CCOC(=O)Cc1cccc(N)c1 to produce CCOC(=O)Cc1cccc(NC(=O)c2ccc(Br)o2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.