1.1: Bu3SnH; AIBN / 0.33 h / 130 °C 1.2: Pd2dba3*CHCl3; AsPh3 / dimethylformamide / 50 °C 2.1: 93 percent / DMAP; Et3N 3.1: 28 percent / m-CPBA 4.1: LiAlH4 5.1: MnO2 6.1: SnCl4 7.1: HF 8.1: NaOMe 9.1: ion exchange resin Dowex 50W-X8(H+) 10.1: 42 percent / NaOMe View Scheme