(R)-4-((5S,6S)-5-Acetoxy-6-butylcarbamoyl-5,6-dihydro-4H-pyridazine-1-carbonyl)-2-oxo-oxazolidine-3-carboxylic acid tert-butyl ester 在
caesium carbonate 作用下,
以
甲醇 为溶剂,
反应 0.25h,
以90%的产率得到[(R)-2-((5S,6S)-6-Butylcarbamoyl-5-hydroxy-5,6-dihydro-4H-pyridazin-1-yl)-1-hydroxymethyl-2-oxo-ethyl]-carbamic acid tert-butyl ester