ethyl (3aR,4S,7aR)-2-hydroxy-7-(4-methylphenyl)sulfonyl-6-phenyl-3,3a,4,7a-tetrahydro-2H-furo[2,3-b]pyridine-4-carboxylate 在
2-碘酰苯甲酸 作用下,
以
二甲基亚砜 为溶剂,
生成
ethyl (3aR,4S,7aR)-7-(4-methylphenyl)sulfonyl-2-oxo-6-phenyl-3,3a,4,7a-tetrahydrofuro[2,3-b]pyridine-4-carboxylate