叔丁基二甲基氯硅烷 、
[(5R,6R,8R,9R)-4-Amino-9-(tert-butyl-dimethyl-silanyloxy)-8-methoxy-2,2-dioxo-1,7-dioxa-2λ6-thia-spiro[4.4]non-3-en-6-yl]-methanol 在
4-二甲氨基吡啶 作用下,
以
乙腈 为溶剂,
反应 24.0h,
生成 (5R,6R,8R,9R)-9-(tert-Butyl-dimethyl-silanyloxy)-6-(tert-butyl-dimethyl-silanyloxymethyl)-8-methoxy-2,2-dioxo-1,7-dioxa-2λ
6-thia-spiro[4.4]non-3-en-4-ylamine