1.1: dichloromethane; acetonitrile / 30 h / 20 °C 1.2: 1 h / 80 °C 2.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.5 h / -78 °C 2.2: 2 h / -78 °C 3.1: hydrogenchloride / tetrahydrofuran; 1,4-dioxane / 1 h / 0 - 20 °C 4.1: triethylamine / dichloromethane / 0 °C 5.1: triethylamine; potassium carbonate; sodium iodide / acetonitrile / 35 h / 80 °C 6.1: lithium hydroxide hydrate / tetrahydrofuran; ethanol / 1.5 h / 20 °C 7.1: ethanol / 3 h / 80 °C / |Sealed tube 8.1: |Resolution of racemate View Scheme