1: 1.) NBS; 2.) triethylamine / 1.) CD3CN, MeOH, 10 min, NMR tube; 2.) CD3CN, MeOH, NMR tube 2: 94 percent / (i-Pr)3Al / toluene; CH2Cl2 / -78 deg C to room temp., then 12 h 3: 20 percent Spectr. / AcOH / H2O; CD3CN View Scheme