Methanesulfonic acid (1R,2R,3R)-2,3-bis-methanesulfonyloxy-1-[(R)-1-(toluene-4-sulfonylamino)-ethyl]-butyl ester 在
potassium carbonate 作用下,
以
甲醇 为溶剂,
反应 12.0h,
生成 Methanesulfonic acid (2R,3S,4S,5S)-4-methanesulfonyloxy-2,5-dimethyl-1-(toluene-4-sulfonyl)-pyrrolidin-3-yl ester