1-Phenylcarbamoylisatin                                                                                                                                                              在
                                                                                                                                                                                 (+)-Ph-BPE                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷   、                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                    反应 12.5h,
                                                                                                                生成                                                 dimethyl4-methyl-2'-oxo-1'-(phenylcarbamoyl)spiro[cyclopent[2]ene-1,3'-indoline]-3,5-dicarboxylate   、                                                                                             (1R,4R,5R)-dimethyl4-methyl-2'-oxo-1'-(phenylcarbamoyl)spiro[cyclopent[2]ene-1,3'-indoline]-3,5-dicarboxylate   、                                                                                             
(1S,4S,5S)-dimethyl4-methyl-2'-oxo-1'-(phenylcarbamoyl)spiro[cyclopent[2]ene-1,3'-indoline]-3,5-dicarboxylate