Using CSc1nc(-c2cccc(N)c2)c2c(N)c(C(=O)[O-])ccc2n1 to produce CSc1nc(-c2cccc(N)c2)c2c(N)c(C(=O)O)ccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.