(R)-2-benzyl-N-((R)-2-hydroxy-1-phenylethyl)pent-4-enamide   、                                                                                      (S)-2-(2-tert-butoxy-2-oxoethyl)pent-4-enoic acid                                                                                                                                                              在
                                                                                                                                                                                 
(S)-1-((R)-2-((R)-2-benzylpent-4-enamido)-2-phenylethyl) 4-tert-butyl 2-allylsuccinate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以The desired product was obtained as a colorless oil (425 mg, 100%) after work-up with DCM as solvent的产率得到(S)-1-((R)-2-((R)-2-benzylpent-4-enamido)-2-phenylethyl) 4-tert-butyl 2-allylsuccinate