Using CCOC(=O)c1cnc2c(c(C)nn2-c2ccccn2)c1N=[N+]=[N-] to produce CCOC(=O)c1cnc2c(c(C)nn2-c2ccccn2)c1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.