Using COC(=O)c1cccc2nc(CCCl)n(Cc3ccc(-c4ccccc4C#N)cc3)c12, O=C([O-])[O-] to produce COCCc1nc2cccc(C(=O)OC)c2n1Cc1ccc(-c2ccccc2C#N)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.