Dimethyl 5-[4-[(2R,3S,4S,5S,6R)-3-fluoro-4,5-dihydroxy-6-(hydroxymethyl)tetrahydropyran-2-yl]oxyphenyl]benzene-1,3-dicarboxylate 、
4'-(((4aR,7R,8S,8aR)-7-(benzyloxy)-8-fluoro-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-6-yl)oxy)-N-methyl-[1,1'-biphenyl]-3-carboxamide 以27%的产率得到4'-(((2R,3R,4S,5R,6R)-4-fluoro-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-N-methyl-[1,1'-biphenyl]-3-carboxamide