Methyl (S)-2,3,4,5-tetrahydro-7-[[[(benzimidazol-2-yl)methyl]amino]carbonyl]-3-oxo-1H-1,4-benzodiazepine-2-acetate   、                                                                                      
氢氧化锂                                                                                                                                                                                                                                                                                                          以to yield the title compound (66%) as a white powder的产率得到(S)-2,3,4,5-Tetrahydro-7-[[[(benzimidazol-2-yl)methyl]amino]carbonyl]-3-oxo-1H-1,4-benzodiazepine-2-acetic acid