(R)-3-[(E)-2-(2-Guanidino-ethylcarbamoyl)-vinyl]-8-oxo-7-[1-pyridin-2-yl-meth-(Z)-ylidene]-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester                                                                                                                                                              在
                                                                                                                                                                                 
间氯过氧苯甲酸                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 (R)-3-[(E)-2-(2-Guanidino-ethylcarbamoyl)-vinyl]-5,5,8-trioxo-7-[1-pyridin-2-yl-meth-(Z)-ylidene]-5λ
6-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester