Using COC(=O)c1cc(-c2cncc(Cl)c2)cnc1-c1ccccn1 to produce O=C([O-])c1cc(-c2cncc(Cl)c2)cnc1-c1ccccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.