乙酸酐 、
1,6-di-(β-D-fructopyranosyloxy)-3,4-dithiahexane 在
吡啶 作用下,
以89%的产率得到Acetic acid (2S,3S,4R,5R)-4,5-diacetoxy-2-acetoxymethyl-2-{2-[2-((2S,3S,4R,5R)-3,4,5-triacetoxy-2-acetoxymethyl-tetrahydro-pyran-2-yloxy)-ethyldisulfanyl]-ethoxy}-tetrahydro-pyran-3-yl ester