2,2-二甲氧基丙烷 、 (1S,3S,4R,5R)-1-((2R,3S,5R)-3,5-Dihydroxy-6-methoxy-2-methyl-tetrahydro-pyran-3-yl)-hexane-1,3,4,5-tetraol 在
Amberlite IR-120 作用下,
以
丙酮 为溶剂,
反应 0.67h,
以1 mg的产率得到(4S,5R,6R,8R,9R)-4-((4S,5R,6R)-5-Hydroxy-2,2,6-trimethyl-[1,3]dioxan-4-ylmethyl)-8-methoxy-2,2,6-trimethyl-1,3,7-trioxa-spiro[4.5]decan-9-ol