1: 1.) n-butyllithium / 1.) THF, hexane, -100 deg C, 0.5 h, 2.) THF, hexane, from -100 deg C to RT 2: pyridine hydrochloride / 0.17 h / 150 °C 3: H2 / 5percent Pd/C / tetrahydrofuran; methanol / 760 Torr View Scheme

1: 1.) n-butyllithium / 1.) THF, hexane, -100 deg C, 0.5 h, 2.) THF, hexane, from -100 deg C to RT 2: pyridine hydrochloride / 0.17 h / 150 °C 3: H2 / 5percent Pd/C / tetrahydrofuran; methanol / 760 Torr View Scheme

1: pyridine hydrochloride / 0.17 h / 150 °C 2: H2 / 5percent Pd/C / tetrahydrofuran; methanol / 760 Torr View Scheme