Using CCOC(=O)CBr, O=C1C(N2C(=O)c3ccccc3C2=O)c2ccccc2N1c1ccccc1 to produce CCOC(=O)CC1(N2C(=O)c3ccccc3C2=O)C(=O)N(c2ccccc2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.