Phosphoric acid (2R,3R,4S,5R,6R)-3-allyloxy-4,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl ester diphenyl ester 在
samarium diiodide 作用下,
以
四氢呋喃 为溶剂,
以63%的产率得到(3aR,5R,6R,7R,7aS)-3-methyl-6,7-bis(phenylmethoxy)-5-(phenylmethoxymethyl)-3,3a,5,6,7,7a-hexahydro-2H-furo[3,2-b]pyran