Are there alternatives to 2-[(E)-(4-Methoxy-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide (CAS: 6528-34-3) in synthesis?

When considering alternatives to 2-[(E)-(4-Methoxy-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide (CAS: 6528-34-3) for synthesis, chemists might explore closely related analogs such as other diazenyldiester compounds. Isomers or similar functional groups, such as nitrophenols or methoxyphenyl compounds, could also be considered. Alternative reagents that provide similar functionalization or catalysis might also be viable. Careful evaluation is necessary to ensure the chosen alternative meets the required chemical and physical properties.