(2S,3S,4S,5R)-3,4,5-Trihydroxy-6-methylsulfanyl-tetrahydro-pyran-2-carboxylic acid methyl ester 、
对甲基苯甲酰氯 在
二正丁基氧化锡 、
三乙胺 作用下,
生成 (2S,3S,4S,5R,6S)-3-Hydroxy-4,5-bis-(4-methyl-benzoyloxy)-6-methylsulfanyl-tetrahydro-pyran-2-carboxylic acid methyl ester 、
(2S,3S,4S,5R,6R)-3-Hydroxy-4,5-bis-(4-methyl-benzoyloxy)-6-methylsulfanyl-tetrahydro-pyran-2-carboxylic acid methyl ester 、
(2S,3S,4S,5R,6R)-4-Hydroxy-3,5-bis-(4-methyl-benzoyloxy)-6-methylsulfanyl-tetrahydro-pyran-2-carboxylic acid methyl ester 、
(2S,3S,4S,5R,6S)-4-Hydroxy-3,5-bis-(4-methyl-benzoyloxy)-6-methylsulfanyl-tetrahydro-pyran-2-carboxylic acid methyl ester