Using [N-]=[N+]=[N-], Cn1cc(C2=C(c3c4n(c5ccccc35)CCC(CCOS(C)(=O)=O)C4)C(=O)NC2=O)c2ccccc21 to produce Cn1cc(C2=C(c3c4n(c5ccccc35)CCC(CCN=[N+]=[N-])C4)C(=O)NC2=O)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.