Using Nc1ccc(C(=O)c2ncc3ccccn23)cc1C(=O)O, N=CN to produce O=C(c1ccc2nc[nH]c(=O)c2c1)c1ncc2ccccn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.