1.1: 99 percent / imidazole / dimethylformamide / 20 °C 2.1: 100 percent / quinoline; H2 / 5percent Pd/BaSO4 / methanol / 2 h / 20 °C 3.1: TBAF / tetrahydrofuran / 20 °C 4.1: NaOH / tetrahydrofuran / 3 h / 20 °C 5.1: 62 percent / diethyl ether / 2 h / 0 °C 6.1: 93 percent / imidazole / dimethylformamide / 20 °C 7.1: (+)-(Ipc)2BH / tetrahydrofuran / 2 h / -35 - 0 °C 7.2: MeCHO / tetrahydrofuran / 0 - 40 °C 7.3: 75 percent / tetrahydrofuran / 1 h / 20 °C 8.1: NiCl2(PPh3)2 / tetrahydrofuran; diethyl ether / 0.33 h / 0 °C 9.1: tetrahydrofuran / 20 °C 10.1: 83 percent / TBAF / tetrahydrofuran / 20 °C View Scheme