Using CC(C)(C)OC(=O)Nc1cccnc1Br, CCOC(=O)C(=O)OCC to produce CCOC(=O)C(=O)c1ncccc1NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.