[(3R*,4S*,5S*)-5-(4-amino-3-fluoro-benzyl)-4-hydroxy-1,1-dioxo-hexahydro-1λ6-thiopyran-3-yl]-(3-tert-butyl-benzyl)-carbamic acid tert-butyl ester 在
1-butyl-3-methylimidazolium tribromide 作用下,
以
二氯甲烷 为溶剂,
反应 0.83h,
生成 [(3R*,4S*,5S*)-5-(4-amino-3-bromo-5-fluoro-benzyl)-4-hydroxy-1,1-dioxo-hexahydro-1λ6-thiopyran-3-yl]-(3-tert-butyl-benzyl)-carbamic acid tert-butyl ester 、
[(3R,4S,5S)-5-(4-amino-3-bromo-5-fluoro-benzyl)-4-hydroxy-1,1-dioxo-hexahydro-1λ6-thiopyran-3-yl]-(3-tert-butyl-benzyl)-carbamic acid tert-butyl ester