、                                                                                      (E)-(S)-4-({(S)-2-[3-(3-Bromo-phenyl)-3-methyl-2-methylamino-butyrylamino]-3,3-dimethyl-butyryl}-methyl-amino)-2,5-dimethyl-hex-2-enoic acid ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 
四(三苯基膦)钯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                    反应 20.0h,
                                                                                                                生成                                                 
(E)-(S)-4-({(S)-3,3-Dimethyl-2-[(S)-3-methyl-2-methylamino-3-(3-vinyl-phenyl)-butyrylamino]-butyryl}-methyl-amino)-2,5-dimethyl-hex-2-enoic acid ethyl ester   、                                                                                             (E)-(S)-4-({(S)-3,3-Dimethyl-2-[(R)-3-methyl-2-methylamino-3-(3-vinyl-phenyl)-butyrylamino]-butyryl}-methyl-amino)-2,5-dimethyl-hex-2-enoic acid ethyl ester