Using O=C([O-])[O-], CC(C)(C)OC(=O)N1CCOC(c2ccc(Cl)c(Cl)c2)C(Oc2ncccc2C#N)C1 to produce CC(C)(C)OC(=O)N1CCOC(c2ccc(Cl)c(Cl)c2)C(Oc2ncccc2C(N)=O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.