Using O=C(CCN1C(=O)c2ccccc2C1=O)Nc1ccccc1, CCOC(=O)C#N to produce CCOC(=O)c1nc(CCN2C(=O)c3ccccc3C2=O)nc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.