Using CN, NC(=O)Nc1[nH]c2cc(-c3ccc(C=O)o3)ccc2c1C(N)=O to produce CNCc1ccc(-c2ccc3c(C(N)=O)c(NC(N)=O)[nH]c3c2)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.