Using CCOC(=O)CBr, CN1C(=O)c2cccnc2Nc2ccccc21 to produce CCOC(=O)CN1c2ccccc2N(C)C(=O)c2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.