(3S,4R,5R)-2-[(3aS,4S,6aS)-(2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)]-5-benzyloxy-4-methoxy-3-phenyl[1,2]oxazinane 在
samarium diiodide 作用下,
以
四氢呋喃 为溶剂,
以18%的产率得到(2R,3R,4S)-4-{[(3aS,4S,6aS)-2,2-dimethyl-tetrahydro-2H-furo[3,4-d][1,3]dioxol-4-yl-amino]}-2-benzyloxy-3-methoxy-4-phenylbutan-1-ol