ethyl (4aR,6R,7S,8S,8aR)-8-hydroxy-3-methyl-7-phenylmethoxy-6-(phenylmethoxymethyl)-6,7,8,8a-tetrahydro-4aH-pyrano[2,3-b][1,4]oxathiine-2-carboxylate 在
间氯过氧苯甲酸 作用下,
以
二氯甲烷 为溶剂,
生成 ethyl (4aR,6R,7S,8S,8aR)-8-hydroxy-3-methyl-1-oxo-7-phenylmethoxy-6-(phenylmethoxymethyl)-6,7,8,8a-tetrahydro-4aH-pyrano[2,3-b][1,4]oxathiine-2-carboxylate