p-Nitrobenzyl 6-ethyl-3-[2-(bromo-t-butoxycarbonylamino)ethylthio]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate 在
palladium-carbon 盐酸 、 H2 作用下,
以
乙醇 为溶剂,
生成
sodium 6-ethyl-3-[2-(bromo-t-butoxycarbonylamino)ethylthio]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate