Using O=C(O)c1ccc(-c2ccccc2)cc1, Nc1ccc2cccnc2c1 to produce O=C(Nc1ccc2cccnc2c1)c1ccc(-c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.