Using COc1ccc(-c2cccc3c2CCC3=O)c(OCC2(CN=[N+]=[N-])COC2)c1OC to produce COc1ccc(-c2cccc3c2CCC3=O)c(OCC2(CN)COC2)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.