benzyl (2S,3R,5R,6R)-3-chloroacetoxy-3-methyl-7-oxo-6-phenoxyacetamido-4-thia-1-azabicyclo<3.2.0>heptane-2-carboxylate 在
硫脲 作用下,
以
乙醇 为溶剂,
以53%的产率得到benzyl (2S,3R,5R,6R)-3-hydroxymethyl-3-methyl-7-oxo-6-phenoxyacetamido-4-thia-1-azabicyclo<3.2.0>heptane-2-carboxylate