Using CC(C)(C)OC(=O)CN, COc1nc2cc(Br)cc(CBr)c2nc1OC to produce COc1nc2cc(Br)cc(CNCC(=O)OC(C)(C)C)c2nc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.