(R)-4-[(2S,3S)-6-((3R,4S,7S)-4-Acetoxy-3,7-dimethyl-8-oxo-nonyl)-3-methyl-3,4-dihydro-2H-pyran-2-yl]-pentanoic acid methyl ester 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 12.0h,
以5.8 mg的产率得到(R)-4-[(2S,3S)-6-((3R,4S,7S)-4-Hydroxy-3,7-dimethyl-8-oxo-nonyl)-3-methyl-3,4-dihydro-2H-pyran-2-yl]-pentanoic acid methyl ester