1: iron (III) acetylacetonate / tetrahydrofuran / -20 - 20 °C / |Inert atmosphere 2: 2-hydroxy-pyridine; triethylamine / 18 h / 80 °C / |Inert atmosphere 3: trifluoroacetic acid / dichloromethane / -15 °C / |Inert atmosphere View Scheme

1: iron (III) acetylacetonate / tetrahydrofuran / -20 - 20 °C / |Inert atmosphere 2: 2-hydroxy-pyridine; triethylamine / 18 h / 80 °C / |Inert atmosphere View Scheme

iron (III) acetylacetonate in tetrahydrofuran T=-20 - 20°C; Inert atmosphere; Solvent;

1: 4-bromo-1-methoxy-2-(3-methoxypropoxy)benzene With isopropylmagnesium chloride in tetrahydrofuran 0.25 h; Inert atmosphereCooling with ice; 2: With n-butyllithium in tetrahydrofuran; hexane 4 h; Inert atmosphere; 3: [(1S,3S)-3-bromomethyl-1-((2S,4S)-4-isopropyl-5-oxofuranidin-2-yl)-4-methylpentyl]-carbamic acid tert-butyl ester With iron (III) acetylacetonate in tetrahydrofuran; hexane T=-20 - 20°C; Inert atmosphere; Solvent;