{(4R,6R)-6-[(S)-3-[2-((2S,6R)-6-Benzyloxymethyl-4-oxo-tetrahydro-pyran-2-ylmethyl)-[1,3]dithian-2-yl]-2-(tert-butyl-dimethyl-silanyloxy)-3-methyl-butyl]-2,2-dimethyl-[1,3]dioxan-4-yl}-acetic acid ethyl ester 在
sodium hydride 、 mercury dichloride 、
mercury(II) oxide 作用下,
以
水 、
乙腈 为溶剂,
生成 {(4R,6R)-6-[(S)-5-{(2S,6R)-6-Benzyloxymethyl-4-[1-methoxycarbonyl-meth-(Z)-ylidene]-tetrahydro-pyran-2-yl}-2-(tert-butyl-dimethyl-silanyloxy)-3,3-dimethyl-4-oxo-pentyl]-2,2-dimethyl-[1,3]dioxan-4-yl}-acetic acid ethyl ester