苯基硫三甲基硅烷 、
Benzoic acid (2R,3R,4R,5R,6S)-5-(tert-butyl-dimethyl-silanyloxy)-4,6-dimethoxy-2-methyl-tetrahydro-pyran-3-yl ester 在
四丁基碘化铵 、
potassium carbonate 、 zinc(II) iodide 作用下,
以73%的产率得到(2R,3R,4R,5R,6R)-5-(tert-Butyl-dimethyl-silanyloxy)-4-methoxy-2-methyl-6-phenylsulfanyl-tetrahydro-pyran-3-ol