Using BrCc1ccccc1, O=C(O)Cn1cc(-c2n[nH]c(=O)c3ccccc23)c2ccccc21 to produce O=C(O)Cn1cc(-c2nn(Cc3ccccc3)c(=O)c3ccccc23)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.