(6R,7R)-7-(2-Hydroxy-2-phenyl-acetylamino)-4-[1-methoxycarbonyl-meth-(Z)-ylidene]-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester                                                                                                                                                              在
                                                                                                                                                                                 
苯甲醚   、                                                                                                  
三氟乙酸                                                                                                                                  作用下,
                                                                                                                                                                                        反应 0.08h,
                                                                                                                生成                                                 
(6R,7R)-7-(2-Hydroxy-2-phenyl-acetylamino)-4-[1-methoxycarbonyl-meth-(Z)-ylidene]-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid