1.1: potassium carbonate; hydrogen / palladium on activated charcoal / dichloromethane / 24 h / 20 °C 2.1: hydrogen / palladium 10 on activated carbon / ethyl acetate / 16 h / 45 - 50 °C / 2585.81 Torr 3.1: lithium tri-t-butoxyaluminum hydride / tetrahydrofuran / 5 h / 0 - 10 °C 3.2: 0 - 5 °C 4.1: sodium hydroxide; water / tetrahydrofuran; methanol / 4 h / 25 - 35 °C 4.2: pH 1 - 2 View Scheme