(1S,2S)-2-(2-carbamoyl-5-(3-ethyl-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indazol-1-yl)-3-fluorophenylamino)-cyclopentyl 2-(tert-butoxycarbonylamino)acetate                                                                                                                                                              在
                                                                                                                                                                                 
盐酸   、                                                                                                  
水                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,4-二氧六环                                                                                  为溶剂,
                                                                                                                                                    反应 16.0h,
                                                                                                                以77%的产率得到(1S,2S)-2-(2-carbamoyl-5-(3-ethyl-6,6-dimethyl-4-oxo-4,5,6,7-tetrahydro-1H-indazol-1-yl)-3-fluorophenylamino)cyclopentyl 2-aminoacetate hydrochloride