Using On1nnc2ccccc21, COC(=O)c1ccc(C(=O)O)cc1NC(C)=O to produce COC(=O)c1ccc(C(=O)NN)cc1NC(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.