benzyl (2S,5R,6R)-(E)-7-methoxycarbonylmethylene-3,3-dimethyl-6-phenoxyacetamido-4-thia-1-azabicyclo<3.2.0>-heptane-2-carboxylate 在
palladium on activated charcoal
氢气 作用下,
反应 6.0h,
以60%的产率得到lithium (2S,5R,6R)-7-methoxycarbonyl-(E)-methylene-3,3-dimethyl-6-phenoxyacetamido-4-thia-1-azabicyclo<3.2.0>-heptane-2-carboxylate