1: LiAlH4 3: acid, H2O 4: NH2OH*HCl, pyridine 5: 5percent sodium hypochlorite, Et3N 6: H2, boric acid / W-2 Raney nickel 7: MsCl, DMAP 9: 97 percent / PPTS / methanol 10: CrO3, H2SO4 11: L-selectride 12: 75 percent / Na, liq. NH3 View Scheme