Using CN(c1cccnc1)c1ncccc1C=O, c1cncc(Cc2cccnc2)c1 to produce CN(c1cccnc1)c1ncccc1C(O)C(c1cccnc1)c1cccnc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.