Using COC(=O)CCCc1ccc(C(Cc2ccccc2)N=[N+]=[N-])cc1 to produce COC(=O)CCCc1ccc(C(N)Cc2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.