(1R,2R,3S,4S)-3-((R)-(1S,2R,4R)-2-Hydroxy-7,7-dimethyl-bicyclo[2.2.1]hept-1-ylmethanesulfinyl)-1-methoxy-7-oxa-bicyclo[2.2.1]hept-5-ene-2-carboxylic acid methyl ester 在
四氧化锇 、
十二/十四烷基二甲基氧化胺 作用下,
以
丙酮 为溶剂,
生成
(1S)-methyl 5,6-exo-dihydroxy-3-endo-({(1S,2R,4R)-2-hydroxy-7,7-dimethylbicyclo[2.2.1]heptan-1-yl}methylsulfonyl)-1-methoxy-7-oxabicyclo[2.2.1]heptane-2-endo-carboxylate