Using CC(=O)O, COC(=O)C(C#N)C1(C#N)C(=O)Nc2ccc(Cl)cc21 to produce O=C1CC2(C(=O)N1)C(=O)Nc1ccc(Cl)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.