Using Cc1nc(N(C)c2ccc(O)cc2)c2ccccc2n1, COC(=O)CBr to produce COC(=O)COc1ccc(N(C)c2nc(C)nc3ccccc23)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.