2,3,4,5-Tetrahydro-1-(1H-imidazol-4-ylmethyl)-3-(phenylmethyl)-7-(3-pyridinyl)-4-(trifluoroacetyl)-1H-1,4-benzodiazepine, trihydrochloride                                                                                                                                                              在
                                                                                                                                                                                 
乙醚                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
三氟乙酸   、                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 3.0h,
                                                                                                                以afforded 700 mg (74%) of Compound C as a white solid的产率得到(R)-7-cyano-2,3,4,5-tetrahydro-4-(phenylacetyl)-3-(phenylmethyl)-1H-1,4-benzodiazepine