(2R,3S)-2-tert-Butyl-3-(3,4-dimethoxy-phenyl)-5-oxo-tetrahydro-furan-3-carboxylic acid 在
lithium diisopropyl amide 作用下,
以
乙醚 为溶剂,
生成 (2S,3R,4R)-2-tert-Butyl-3-(3,4-dimethoxy-phenyl)-4-(1-hydroxy-ethyl)-5-oxo-tetrahydro-furan-3-carboxylic acid methyl ester