Here is a chemical reaction. Reactants are: {Aryl_halide_SMILES}, {Additive_SMILES}. Product is: [Ar–C=N–N–C=O–COOEt, Ar–C=N–N–C=O–CH3]. Reaction type is Arylation. The reaction conditions of this reaction are: Base: {Base_SMILES}. Ligand: {Ligand_SMILES}. What is the yield of this reaction?