Using [N-]=[N+]=[N-], COC(=O)c1cccc(-c2c(C)nn(-c3ccc(CCOS(C)(=O)=O)cc3)c2C)c1 to produce COC(=O)c1cccc(-c2c(C)nn(-c3ccc(CCN=[N+]=[N-])cc3)c2C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.