Using CC(C(=O)O)c1ccc2c(c1)C(=O)Cc1cccnc1S2, C=[N+]=[N-] to produce COC(=O)C(C)c1ccc2c(c1)C(=O)Cc1cccnc1S2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.