Using Nc1ccc2cccnc2c1, O=C(O)c1ccc2c(c1)C(=O)c1ccccc1-2 to produce O=C(Nc1ccc2cccnc2c1)c1ccc2c(c1)C(=O)c1ccccc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.