tetrabutylammonium (3S,4S)-3-<(R)-1-(benzyloxycarbonyloxy)ethyl>-4-<(S)-1-(N-methylcarbamoyloxy)ethyl>-2-azetidinone-1-sulfonate 在
palladium on activated charcoal
氢气 作用下,
以
四氢呋喃 为溶剂,
以89%的产率得到potassium (3S,4S)-3-<(R)-1-hydroxyethyl>-4-<(S)-1-(N-methylcarbamoyloxy)ethyl>-2-azetidinone-1-sulfonate