1: hydrogen / 10percent Pd-C / ethyl acetate / 70.5 h / Ambient temperature 2: DIBAH / tetrahydrofuran; toluene / 0.25 h / 0 °C 3: pyridine / 3 h / Ambient temperature 4: LiBHEt3 / tetrahydrofuran / 2 h / Ambient temperature 5: 96 percent / trifluoroacetic acid / 24 h / Heating 6: 100 percent / BCl3 / CH2Cl2 / 18 h / 0 °C 7: 84 percent / K2CO3 / dimethylformamide / 5 h / 70 °C 8: 87 percent / Rh(PPh3)3Cl / toluene / 48 h / Heating 9: 100 percent / hydrogen / 10percent Pd-C / ethyl acetate / 2 h / Ambient temperature View Scheme