rac-(2'S,3'R,4'R,5'R)-6-chloro-4'-(3-chloro-phenyl)-2'-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3'-pyrrolidine]-5'-carboxylic acid (4-cyano-2-methoxy-phenyl)amide                                                                                                                                                              在
                                                                                                                                                                                 
双氧水   、                                                                                                  sodium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
水   、                                                                                         
二甲基亚砜                                                                                  为溶剂,
                                                                                                                                                                                        以73%的产率得到(2'R,3'S,4'S,5'S)-6-chloro-4'-(3-chloro-phenyl)-2'-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3'-pyrrolidine]-5'-carboxylic acid (4-carbamoyl-2-methoxy-phenyl)amide