(2R,5R,6R)-6-(1-Fluoro-1-methyl-ethyl)-3,7-dioxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester 、
(三苯基膦)乙腈 在
氢气 作用下,
生成
Potassium; (5R,6R)-3-cyanomethyl-6-(1-fluoro-1-methyl-ethyl)-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylate 、 Potassium; (2R,5R,6R)-3-[1-cyano-meth-(E)-ylidene]-6-(1-fluoro-1-methyl-ethyl)-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylate 、 Potassium; (2R,5R,6R)-3-[1-cyano-meth-(E)-ylidene]-6-(1-fluoro-1-methyl-ethyl)-7-oxo-1-aza-bicyclo[3.2.0]heptane-2-carboxylate