1: 4-(N,N-dimethlyamino)pyridine; (2,6-Me(NO2)PhCO)2O; sodium hydrogencarbonate; triethylamine / dichloromethane; water / 12 h / 0 - 20 °C / Inert atmosphere 2: 10 palladium on activated charcoal; hydrogen / ethanol / 2 h / 20 °C / Inert atmosphere View Scheme

1: 4-(N,N-dimethlyamino)pyridine; (2,6-Me(NO2)PhCO)2O; sodium hydrogencarbonate; triethylamine / dichloromethane; water / 12 h / 0 - 20 °C / Inert atmosphere 2: 10 palladium on activated charcoal; hydrogen / ethanol / 2 h / 20 °C / Inert atmosphere 3: di-isopropyl azodicarboxylate; triphenylphosphine / tetrahydrofuran; toluene / 3 h / 0 - 20 °C / Inert atmosphere View Scheme

1: 4-(N,N-dimethlyamino)pyridine; (2,6-Me(NO2)PhCO)2O; sodium hydrogencarbonate; triethylamine / dichloromethane; water / 12 h / 0 - 20 °C / Inert atmosphere 2: 10 palladium on activated charcoal; hydrogen / ethanol / 2 h / 20 °C / Inert atmosphere View Scheme