3-[(4S,5S)-N-Benzyl-4-(t-butyldimethylsilyloxymethyl)-5-isopropyloxazoladin-4-yl]-(2R,3S)-3-hydroxy-2-methylpropionic Acid, 2,6-Dimethylphenyl Ester 在
palladium on activated charcoal
氢气 作用下,
以
乙醇 为溶剂,
反应 24.0h,
以88%的产率得到(1S,6S,7R,7aS)-7a-(tert-Butyl-dimethyl-silanyloxymethyl)-7-hydroxy-1-isopropyl-6-methyl-tetrahydro-pyrrolo[1,2-c]oxazol-5-one