Using COC(=O)C(CN)c1ccccc1, N=C(c1ccccc1)c1ccccc1 to produce COC(=O)C(CN=C(c1ccccc1)c1ccccc1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.