Using N#CCc1c(-c2ccc(Cl)cc2)nn(-c2ccccc2)c1Cl, NO to produce NC(Cc1c(-c2ccc(Cl)cc2)nn(-c2ccccc2)c1Cl)=NO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.