[(2R,3S)-3-(4-Methoxy-benzyloxy)-tetrahydro-pyran-2-yl]-acetic acid (2R,4aR,6S,7R,8aS)-6-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-4a,6-dimethyl-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl ester 在
碳酸氢钠 、
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
二氯甲烷 、
水 为溶剂,
以96%的产率得到((2R,3S)-3-Hydroxy-tetrahydro-pyran-2-yl)-acetic acid (2R,4aR,6S,7R,8aS)-6-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-4a,6-dimethyl-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl ester