Using Cc1cc(CCl)c(O)c(-n2nc3ccccc3n2)c1, O=C([O-])O to produce Cc1cc(CO)c(O)c(-n2nc3ccccc3n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.