Using Nc1ccc2c(Nc3cccc(Br)c3)ncnc2c1, C=C(C)C(=O)O to produce C=C(C)C(=O)Nc1ccc2c(Nc3cccc(Br)c3)ncnc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.