Using Cc1onc2c1c(=O)n(C1CC(CN=[N+]=[N-])CN(C(=O)OC(C)(C)C)C1)c1cccc(Cl)c21 to produce Cc1onc2c1c(=O)n(C1CC(CN)CN(C(=O)OC(C)(C)C)C1)c1cccc(Cl)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.