Using COc1cc2ncn(-c3nc(-c4ccccc4)c(C#N)s3)c2cc1OC, [N-]=[N+]=[N-] to produce COc1cc2ncn(-c3nc(-c4ccccc4)c(-c4nnn[nH]4)s3)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.