1: 1.) NaOMe; 2.) 10 percent HCl / 1.) methanol; 2.) methanol 2: 97 percent / triethylamine, DMAP / tetrahydrofuran / 14 h / Ambient temperature 3: 76 percent / NaHMDS 4: 100 percent / H2, Li2CO3 / PtO2 / ethanol View Scheme