1: potassium carbonate / acetonitrile / 6 h / Reflux; Inert atmosphere 2: hydrogenchloride / methanol / 3.22 h / 3 - 9 °C 3: SnCl2·2H2O / methanol / 2 h / Reflux 4: acetic acid / 1 h / 90 °C 5: sodium hydroxide / methanol / 2 h / 90 °C 6: potassium carbonate / N,N-dimethyl-formamide / 4 h / 65 °C 7: ammonium formate / 5 palladium on charcoal / isopropyl alcohol; water / 17 h / 40 - 50 °C View Scheme

1.1: N-ethyl-N,N-diisopropylamine / acetonitrile / 2 h / 85 °C 2.1: pyridine / toluene / 35 h / 20 °C / Inert atmosphere 3.1: hydrogenchloride; hydrogen / palladium on activated charcoal / methanol / 5 h / 20 °C / 3450.35 - 4875.49 Torr 3.2: 120 h View Scheme

1: potassium carbonate / N,N-dimethyl acetamide / 8 h / -10 - 20 °C 2: methoxybenzene; trifluoroacetic acid / 13 h / 20 - 80 °C View Scheme

1: potassium carbonate / N,N-dimethyl acetamide / 8 h / -10 - 20 °C 2: methoxybenzene; trifluoroacetic acid / 13 h / 20 - 80 °C 3: sodium tetrahydroborate; sodium hydroxide / water / 4.42 h / 5 - 20 °C View Scheme