Using O=C1c2ccccc2C(=O)N1CCCCBr, Cc1ccc(-c2c[nH]cn2)cn1 to produce Cc1ccc(-c2cn(CN3C(=O)c4ccccc4C3=O)cn2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.