(5R,7R,8R,9S,10R)-8,9,10-tris(acetoxy)-7-(acetoxymethyl)-3-(2,3-dihydrobenzo-1,4-dioxin-6-yl)-1,6-dioxa-2-azaspiro[4.5]dec-2-ene 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以100%的产率得到(5R,7R,8S,9S,10R)-3-(2,3-dihydrobenzo-1,4-dioxin-6-yl)-1,6-dioxa-7-(hydroxymethyl)-2-azaspiro[4.5]dec-2-ene-8,9,10-triol